diff --git a/Cargo.lock b/Cargo.lock
index 8decacf1e0..f9c112b620 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1312,9 +1312,9 @@ dependencies = [
 
 [[package]]
 name = "deno_config"
-version = "0.24.0"
+version = "0.25.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d6b72d6f849f5640ed80dc458b529aec74a79bdabdebe291448d345f865faa99"
+checksum = "64e7a65603a3aa52216021a0abd401770ac6ed284e5b885dadf40ce35b2a0d9e"
 dependencies = [
  "anyhow",
  "deno_semver",
diff --git a/Cargo.toml b/Cargo.toml
index b1e1a20cc3..da1b771591 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -101,7 +101,7 @@ console_static_text = "=0.8.1"
 data-encoding = "2.3.3"
 data-url = "=0.3.0"
 deno_cache_dir = "=0.10.0"
-deno_config = { version = "=0.24.0", default-features = false }
+deno_config = { version = "=0.25.0", default-features = false }
 dlopen2 = "0.6.1"
 ecb = "=0.1.2"
 elliptic-curve = { version = "0.13.4", features = ["alloc", "arithmetic", "ecdh", "std", "pem"] }
diff --git a/cli/args/deno_json.rs b/cli/args/deno_json.rs
index 60ac5d58cb..2b3261a0b9 100644
--- a/cli/args/deno_json.rs
+++ b/cli/args/deno_json.rs
@@ -8,7 +8,7 @@ use deno_semver::jsr::JsrPackageReqReference;
 use deno_semver::npm::NpmPackageReqReference;
 
 pub fn deno_json_deps(
-  config: &deno_config::ConfigFile,
+  config: &deno_config::deno_json::ConfigFile,
 ) -> HashSet<JsrDepPackageReq> {
   let values = imports_values(config.json.imports.as_ref())
     .into_iter()
diff --git a/cli/args/flags.rs b/cli/args/flags.rs
index 3298d6f83e..8d43846c8b 100644
--- a/cli/args/flags.rs
+++ b/cli/args/flags.rs
@@ -11,7 +11,6 @@ use clap::Command;
 use clap::ValueHint;
 use deno_config::glob::FilePatterns;
 use deno_config::glob::PathOrPatternSet;
-use deno_config::ConfigFlag;
 use deno_core::anyhow::bail;
 use deno_core::anyhow::Context;
 use deno_core::error::AnyError;
@@ -42,6 +41,14 @@ use crate::util::fs::canonicalize_path;
 use super::flags_net;
 use super::DENO_FUTURE;
 
+#[derive(Clone, Debug, Default, Eq, PartialEq)]
+pub enum ConfigFlag {
+  #[default]
+  Discover,
+  Path(String),
+  Disabled,
+}
+
 #[derive(Clone, Debug, Default, Eq, PartialEq)]
 pub struct FileFlags {
   pub ignore: Vec<String>,
diff --git a/cli/args/mod.rs b/cli/args/mod.rs
index 2c87be0394..c2ea3be4df 100644
--- a/cli/args/mod.rs
+++ b/cli/args/mod.rs
@@ -12,12 +12,12 @@ use deno_config::workspace::CreateResolverOptions;
 use deno_config::workspace::PackageJsonDepResolution;
 use deno_config::workspace::VendorEnablement;
 use deno_config::workspace::Workspace;
+use deno_config::workspace::WorkspaceDirectory;
+use deno_config::workspace::WorkspaceDirectoryEmptyOptions;
 use deno_config::workspace::WorkspaceDiscoverOptions;
 use deno_config::workspace::WorkspaceDiscoverStart;
-use deno_config::workspace::WorkspaceEmptyOptions;
-use deno_config::workspace::WorkspaceMemberContext;
+use deno_config::workspace::WorkspaceLintConfig;
 use deno_config::workspace::WorkspaceResolver;
-use deno_config::WorkspaceLintConfig;
 use deno_core::normalize_path;
 use deno_core::resolve_url_or_path;
 use deno_graph::GraphKind;
@@ -32,17 +32,17 @@ use deno_runtime::deno_tls::RootCertStoreProvider;
 use deno_semver::npm::NpmPackageReqReference;
 use import_map::resolve_import_map_value_from_specifier;
 
+pub use deno_config::deno_json::BenchConfig;
+pub use deno_config::deno_json::ConfigFile;
+pub use deno_config::deno_json::FmtOptionsConfig;
+pub use deno_config::deno_json::JsxImportSourceConfig;
+pub use deno_config::deno_json::LintRulesConfig;
+pub use deno_config::deno_json::ProseWrap;
+pub use deno_config::deno_json::TsConfig;
+pub use deno_config::deno_json::TsConfigForEmit;
+pub use deno_config::deno_json::TsConfigType;
+pub use deno_config::deno_json::TsTypeLib;
 pub use deno_config::glob::FilePatterns;
-pub use deno_config::BenchConfig;
-pub use deno_config::ConfigFile;
-pub use deno_config::FmtOptionsConfig;
-pub use deno_config::JsxImportSourceConfig;
-pub use deno_config::LintRulesConfig;
-pub use deno_config::ProseWrap;
-pub use deno_config::TsConfig;
-pub use deno_config::TsConfigForEmit;
-pub use deno_config::TsConfigType;
-pub use deno_config::TsTypeLib;
 pub use flags::*;
 pub use lockfile::CliLockfile;
 pub use package_json::PackageJsonInstallDepsProvider;
@@ -83,9 +83,9 @@ use crate::file_fetcher::FileFetcher;
 use crate::util::fs::canonicalize_path_maybe_not_exists;
 use crate::version;
 
-use deno_config::FmtConfig;
-use deno_config::LintConfig;
-use deno_config::TestConfig;
+use deno_config::deno_json::FmtConfig;
+use deno_config::deno_json::LintConfig;
+use deno_config::deno_json::TestConfig;
 
 pub fn npm_registry_url() -> &'static Url {
   static NPM_REGISTRY_DEFAULT_URL: Lazy<Url> = Lazy::new(|| {
@@ -159,9 +159,9 @@ pub fn jsr_api_url() -> &'static Url {
 }
 
 pub fn ts_config_to_transpile_and_emit_options(
-  config: deno_config::TsConfig,
+  config: deno_config::deno_json::TsConfig,
 ) -> Result<(deno_ast::TranspileOptions, deno_ast::EmitOptions), AnyError> {
-  let options: deno_config::EmitConfigOptions =
+  let options: deno_config::deno_json::EmitConfigOptions =
     serde_json::from_value(config.0)
       .context("Failed to parse compilerOptions")?;
   let imports_not_used_as_values =
@@ -503,7 +503,7 @@ fn resolve_lint_rules_options(
 pub fn discover_npmrc_from_workspace(
   workspace: &Workspace,
 ) -> Result<(Arc<ResolvedNpmRc>, Option<PathBuf>), AnyError> {
-  let root_folder = workspace.root_folder().1;
+  let root_folder = workspace.root_folder_configs();
   discover_npmrc(
     root_folder.pkg_json.as_ref().map(|p| p.path.clone()),
     root_folder.deno_json.as_ref().and_then(|cf| {
@@ -769,7 +769,7 @@ pub struct CliOptions {
   npmrc: Arc<ResolvedNpmRc>,
   maybe_lockfile: Option<Arc<CliLockfile>>,
   overrides: CliOptionOverrides,
-  pub workspace: Arc<Workspace>,
+  pub start_dir: Arc<WorkspaceDirectory>,
   pub disable_deprecated_api_warning: bool,
   pub verbose_deprecated_api_warning: bool,
 }
@@ -780,7 +780,7 @@ impl CliOptions {
     initial_cwd: PathBuf,
     maybe_lockfile: Option<Arc<CliLockfile>>,
     npmrc: Arc<ResolvedNpmRc>,
-    workspace: Arc<Workspace>,
+    start_dir: Arc<WorkspaceDirectory>,
     force_global_cache: bool,
   ) -> Result<Self, AnyError> {
     if let Some(insecure_allowlist) =
@@ -801,7 +801,7 @@ impl CliOptions {
     }
 
     let maybe_lockfile = maybe_lockfile.filter(|_| !force_global_cache);
-    let root_folder = workspace.root_folder().1;
+    let root_folder = start_dir.workspace.root_folder_configs();
     let maybe_node_modules_folder = resolve_node_modules_folder(
       &initial_cwd,
       &flags,
@@ -826,7 +826,7 @@ impl CliOptions {
       npmrc,
       maybe_node_modules_folder,
       overrides: Default::default(),
-      workspace,
+      start_dir,
       disable_deprecated_api_warning,
       verbose_deprecated_api_warning,
     })
@@ -847,14 +847,13 @@ impl CliOptions {
         } else {
           &[]
         };
-      let config_parse_options = deno_config::ConfigParseOptions {
+      let config_parse_options = deno_config::deno_json::ConfigParseOptions {
         include_task_comments: matches!(
           flags.subcommand,
           DenoSubcommand::Task(..)
         ),
       };
-      let discover_pkg_json = flags.config_flag
-        != deno_config::ConfigFlag::Disabled
+      let discover_pkg_json = flags.config_flag != ConfigFlag::Disabled
         && !flags.no_npm
         && !has_flag_env_var("DENO_NO_PACKAGE_JSON");
       if !discover_pkg_json {
@@ -866,13 +865,14 @@ impl CliOptions {
         pkg_json_cache: Some(
           &deno_runtime::deno_node::PackageJsonThreadLocalCache,
         ),
+        workspace_cache: None,
         config_parse_options,
         additional_config_file_names,
         discover_pkg_json,
         maybe_vendor_override,
       }
     };
-    let resolve_empty_options = || WorkspaceEmptyOptions {
+    let resolve_empty_options = || WorkspaceDirectoryEmptyOptions {
       root_dir: Arc::new(
         ModuleSpecifier::from_directory_path(&initial_cwd).unwrap(),
       ),
@@ -880,36 +880,36 @@ impl CliOptions {
         .unwrap_or(VendorEnablement::Disable),
     };
 
-    let workspace = match &flags.config_flag {
-      deno_config::ConfigFlag::Discover => {
+    let start_dir = match &flags.config_flag {
+      ConfigFlag::Discover => {
         if let Some(start_paths) = flags.config_path_args(&initial_cwd) {
-          Workspace::discover(
+          WorkspaceDirectory::discover(
             WorkspaceDiscoverStart::Paths(&start_paths),
             &resolve_workspace_discover_options(),
           )?
         } else {
-          Workspace::empty(resolve_empty_options())
+          WorkspaceDirectory::empty(resolve_empty_options())
         }
       }
-      deno_config::ConfigFlag::Path(path) => {
+      ConfigFlag::Path(path) => {
         let config_path = normalize_path(initial_cwd.join(path));
-        Workspace::discover(
+        WorkspaceDirectory::discover(
           WorkspaceDiscoverStart::ConfigFile(&config_path),
           &resolve_workspace_discover_options(),
         )?
       }
-      deno_config::ConfigFlag::Disabled => {
-        Workspace::empty(resolve_empty_options())
+      ConfigFlag::Disabled => {
+        WorkspaceDirectory::empty(resolve_empty_options())
       }
     };
 
-    for diagnostic in workspace.diagnostics() {
+    for diagnostic in start_dir.workspace.diagnostics() {
       log::warn!("{} {}", colors::yellow("Warning"), diagnostic);
     }
 
-    let (npmrc, _) = discover_npmrc_from_workspace(&workspace)?;
+    let (npmrc, _) = discover_npmrc_from_workspace(&start_dir.workspace)?;
 
-    let maybe_lock_file = CliLockfile::discover(&flags, &workspace)?;
+    let maybe_lock_file = CliLockfile::discover(&flags, &start_dir.workspace)?;
 
     log::debug!("Finished config loading.");
 
@@ -918,7 +918,7 @@ impl CliOptions {
       initial_cwd,
       maybe_lock_file.map(Arc::new),
       npmrc,
-      Arc::new(workspace),
+      Arc::new(start_dir),
       false,
     )
   }
@@ -928,6 +928,11 @@ impl CliOptions {
     &self.initial_cwd
   }
 
+  #[inline(always)]
+  pub fn workspace(&self) -> &Arc<Workspace> {
+    &self.start_dir.workspace
+  }
+
   pub fn graph_kind(&self) -> GraphKind {
     match self.sub_command() {
       DenoSubcommand::Cache(_) => GraphKind::All,
@@ -1013,7 +1018,7 @@ impl CliOptions {
       Some(maybe_url) => Ok(maybe_url),
       None => resolve_import_map_specifier(
         self.flags.import_map_path.as_deref(),
-        self.workspace.root_folder().1.deno_json.as_deref(),
+        self.workspace().root_deno_json().map(|c| c.as_ref()),
         &self.initial_cwd,
       ),
     }
@@ -1033,12 +1038,7 @@ impl CliOptions {
     let cli_arg_specified_import_map = if overrode_no_import_map {
       // use a fake empty import map
       Some(deno_config::workspace::SpecifiedImportMap {
-        base_url: self
-          .workspace
-          .root_folder()
-          .0
-          .join("import_map.json")
-          .unwrap(),
+        base_url: self.workspace().root_dir().join("import_map.json").unwrap(),
         value: serde_json::Value::Object(Default::default()),
       })
     } else {
@@ -1062,7 +1062,7 @@ impl CliOptions {
     };
     Ok(
       self
-        .workspace
+        .start_dir
         .create_resolver(
           CreateResolverOptions {
             pkg_json_dep_resolution,
@@ -1226,7 +1226,7 @@ impl CliOptions {
       maybe_node_modules_folder: Some(path),
       npmrc: self.npmrc.clone(),
       maybe_lockfile: self.maybe_lockfile.clone(),
-      workspace: self.workspace.clone(),
+      start_dir: self.start_dir.clone(),
       overrides: self.overrides.clone(),
       disable_deprecated_api_warning: self.disable_deprecated_api_warning,
       verbose_deprecated_api_warning: self.verbose_deprecated_api_warning,
@@ -1237,11 +1237,11 @@ impl CliOptions {
     self
       .flags
       .node_modules_dir
-      .or_else(|| self.workspace.node_modules_dir())
+      .or_else(|| self.workspace().node_modules_dir())
   }
 
   pub fn vendor_dir_path(&self) -> Option<&PathBuf> {
-    self.workspace.vendor_dir_path()
+    self.workspace().vendor_dir_path()
   }
 
   pub fn resolve_root_cert_store_provider(
@@ -1258,7 +1258,7 @@ impl CliOptions {
     &self,
     config_type: TsConfigType,
   ) -> Result<TsConfigForEmit, AnyError> {
-    let result = self.workspace.resolve_ts_config_for_emit(config_type);
+    let result = self.workspace().resolve_ts_config_for_emit(config_type);
 
     match result {
       Ok(mut ts_config_for_emit) => {
@@ -1301,7 +1301,7 @@ impl CliOptions {
     &self,
   ) -> Result<Vec<deno_graph::ReferrerImports>, AnyError> {
     self
-      .workspace
+      .workspace()
       .to_compiler_option_types()
       .map(|maybe_imports| {
         maybe_imports
@@ -1321,11 +1321,11 @@ impl CliOptions {
   pub fn resolve_fmt_options_for_members(
     &self,
     fmt_flags: &FmtFlags,
-  ) -> Result<Vec<(WorkspaceMemberContext, FmtOptions)>, AnyError> {
+  ) -> Result<Vec<(WorkspaceDirectory, FmtOptions)>, AnyError> {
     let cli_arg_patterns =
       fmt_flags.files.as_file_patterns(self.initial_cwd())?;
     let member_configs = self
-      .workspace
+      .workspace()
       .resolve_fmt_config_for_members(&cli_arg_patterns)?;
     let mut result = Vec::with_capacity(member_configs.len());
     for (ctx, config) in member_configs {
@@ -1339,18 +1339,18 @@ impl CliOptions {
     &self,
     lint_flags: &LintFlags,
   ) -> Result<WorkspaceLintOptions, AnyError> {
-    let lint_config = self.workspace.to_lint_config()?;
+    let lint_config = self.workspace().to_lint_config()?;
     WorkspaceLintOptions::resolve(&lint_config, lint_flags)
   }
 
   pub fn resolve_lint_options_for_members(
     &self,
     lint_flags: &LintFlags,
-  ) -> Result<Vec<(WorkspaceMemberContext, LintOptions)>, AnyError> {
+  ) -> Result<Vec<(WorkspaceDirectory, LintOptions)>, AnyError> {
     let cli_arg_patterns =
       lint_flags.files.as_file_patterns(self.initial_cwd())?;
     let member_configs = self
-      .workspace
+      .workspace()
       .resolve_lint_config_for_members(&cli_arg_patterns)?;
     let mut result = Vec::with_capacity(member_configs.len());
     for (ctx, config) in member_configs {
@@ -1391,16 +1391,16 @@ impl CliOptions {
   pub fn resolve_test_options_for_members(
     &self,
     test_flags: &TestFlags,
-  ) -> Result<Vec<(WorkspaceMemberContext, TestOptions)>, AnyError> {
+  ) -> Result<Vec<(WorkspaceDirectory, TestOptions)>, AnyError> {
     let cli_arg_patterns =
       test_flags.files.as_file_patterns(self.initial_cwd())?;
-    let member_ctxs = self
-      .workspace
+    let workspace_dir_configs = self
+      .workspace()
       .resolve_test_config_for_members(&cli_arg_patterns)?;
-    let mut result = Vec::with_capacity(member_ctxs.len());
-    for (member_ctx, config) in member_ctxs {
+    let mut result = Vec::with_capacity(workspace_dir_configs.len());
+    for (member_dir, config) in workspace_dir_configs {
       let options = TestOptions::resolve(config, test_flags);
-      result.push((member_ctx, options));
+      result.push((member_dir, options));
     }
     Ok(result)
   }
@@ -1415,16 +1415,16 @@ impl CliOptions {
   pub fn resolve_bench_options_for_members(
     &self,
     bench_flags: &BenchFlags,
-  ) -> Result<Vec<(WorkspaceMemberContext, BenchOptions)>, AnyError> {
+  ) -> Result<Vec<(WorkspaceDirectory, BenchOptions)>, AnyError> {
     let cli_arg_patterns =
       bench_flags.files.as_file_patterns(self.initial_cwd())?;
-    let member_ctxs = self
-      .workspace
+    let workspace_dir_configs = self
+      .workspace()
       .resolve_bench_config_for_members(&cli_arg_patterns)?;
-    let mut result = Vec::with_capacity(member_ctxs.len());
-    for (member_ctx, config) in member_ctxs {
+    let mut result = Vec::with_capacity(workspace_dir_configs.len());
+    for (member_dir, config) in workspace_dir_configs {
       let options = BenchOptions::resolve(config, bench_flags);
-      result.push((member_ctx, options));
+      result.push((member_dir, options));
     }
     Ok(result)
   }
@@ -1433,7 +1433,7 @@ impl CliOptions {
     &self,
   ) -> Result<Vec<deno_graph::WorkspaceMember>, AnyError> {
     self
-      .workspace
+      .workspace()
       .jsr_packages()
       .into_iter()
       .map(|pkg| config_to_deno_graph_workspace_member(&pkg.config_file))
@@ -1454,7 +1454,7 @@ impl CliOptions {
   }
 
   pub fn check_js(&self) -> bool {
-    self.workspace.check_js()
+    self.workspace().check_js()
   }
 
   pub fn coverage_dir(&self) -> Option<String> {
@@ -1541,7 +1541,7 @@ impl CliOptions {
   }
 
   pub fn no_config(&self) -> bool {
-    self.flags.config_flag == deno_config::ConfigFlag::Disabled
+    self.flags.config_flag == ConfigFlag::Disabled
   }
 
   pub fn permission_flags(&self) -> &PermissionFlags {
@@ -1601,14 +1601,14 @@ impl CliOptions {
 
   pub fn unstable_bare_node_builtins(&self) -> bool {
     self.flags.unstable_config.bare_node_builtins
-      || self.workspace.has_unstable("bare-node-builtins")
+      || self.workspace().has_unstable("bare-node-builtins")
   }
 
   pub fn use_byonm(&self) -> bool {
     if self.enable_future_features()
       && self.node_modules_dir_enablement().is_none()
       && self
-        .workspace
+        .workspace()
         .config_folders()
         .values()
         .any(|f| f.pkg_json.is_some())
@@ -1622,16 +1622,16 @@ impl CliOptions {
         .as_ref()
         .map(|s| matches!(s.kind, NpmProcessStateKind::Byonm))
         .unwrap_or(false)
-      || self.workspace.has_unstable("byonm")
+      || self.workspace().has_unstable("byonm")
   }
 
   pub fn unstable_sloppy_imports(&self) -> bool {
     self.flags.unstable_config.sloppy_imports
-      || self.workspace.has_unstable("sloppy-imports")
+      || self.workspace().has_unstable("sloppy-imports")
   }
 
   pub fn unstable_features(&self) -> Vec<String> {
-    let mut from_config_file = self.workspace.unstable_features().to_vec();
+    let mut from_config_file = self.workspace().unstable_features().to_vec();
 
     self
       .flags
@@ -1713,7 +1713,7 @@ impl CliOptions {
       full_paths.push(import_map_path);
     }
 
-    for (_, folder) in self.workspace.config_folders() {
+    for (_, folder) in self.workspace().config_folders() {
       if let Some(deno_json) = &folder.deno_json {
         if deno_json.specifier.scheme() == "file" {
           if let Ok(path) = deno_json.specifier.to_file_path() {
@@ -1815,8 +1815,7 @@ impl StorageKeyResolver {
       // otherwise we will use the path to the config file or None to
       // fall back to using the main module's path
       options
-        .workspace
-        .resolve_start_ctx()
+        .start_dir
         .maybe_deno_json()
         .map(|config_file| Some(config_file.specifier.to_string()))
     })
@@ -1912,7 +1911,7 @@ mod test {
     let config_file = ConfigFile::new(
       config_text,
       config_specifier,
-      &deno_config::ConfigParseOptions::default(),
+      &deno_config::deno_json::ConfigParseOptions::default(),
     )
     .unwrap();
     let actual = resolve_import_map_specifier(
@@ -1936,7 +1935,7 @@ mod test {
     let config_file = ConfigFile::new(
       config_text,
       config_specifier,
-      &deno_config::ConfigParseOptions::default(),
+      &deno_config::deno_json::ConfigParseOptions::default(),
     )
     .unwrap();
     let actual = resolve_import_map_specifier(
diff --git a/cli/factory.rs b/cli/factory.rs
index df7b2c8688..15c36cfd29 100644
--- a/cli/factory.rs
+++ b/cli/factory.rs
@@ -54,10 +54,10 @@ use crate::worker::CliMainWorkerOptions;
 use std::collections::BTreeSet;
 use std::path::PathBuf;
 
+use deno_config::deno_json::ConfigFile;
 use deno_config::package_json::PackageJsonDepValue;
 use deno_config::workspace::PackageJsonDepResolution;
 use deno_config::workspace::WorkspaceResolver;
-use deno_config::ConfigFile;
 use deno_core::error::AnyError;
 use deno_core::futures::FutureExt;
 use deno_core::FeatureChecker;
@@ -341,7 +341,8 @@ impl CliFactory {
 
       // initialize the lockfile with the workspace's configuration
       if let Some(lockfile) = &maybe_lockfile {
-        let (root_url, root_folder) = self.options.workspace.root_folder();
+        let root_url = self.options.workspace().root_dir();
+        let root_folder = self.options.workspace().root_folder_configs();
         let config = deno_lockfile::WorkspaceConfig {
           root: WorkspaceMemberConfig {
             package_json_deps: pkg_json_deps(root_folder.pkg_json.as_deref()),
@@ -349,7 +350,7 @@ impl CliFactory {
           },
           members: self
             .options
-            .workspace
+            .workspace()
             .config_folders()
             .iter()
             .filter(|(folder_url, _)| *folder_url != root_url)
@@ -440,7 +441,7 @@ impl CliFactory {
             text_only_progress_bar: self.text_only_progress_bar().clone(),
             maybe_node_modules_path: self.options.node_modules_dir_path().cloned(),
             package_json_deps_provider: Arc::new(PackageJsonInstallDepsProvider::from_workspace(
-              &self.options.workspace,
+              self.options.workspace(),
             )),
             npm_system_info: self.options.npm_system_info(),
             npmrc: self.options.npmrc().clone(),
@@ -510,7 +511,7 @@ impl CliFactory {
               .unstable_bare_node_builtins(),
             maybe_jsx_import_source_config: self
               .options
-              .workspace
+              .workspace()
               .to_maybe_jsx_import_source_config()?,
             maybe_vendor_dir: self.options.vendor_dir_path(),
           })))
diff --git a/cli/graph_container.rs b/cli/graph_container.rs
index d439f93609..cf913464fd 100644
--- a/cli/graph_container.rs
+++ b/cli/graph_container.rs
@@ -98,7 +98,7 @@ impl MainModuleGraphContainer {
     &self,
     files: &[String],
   ) -> Result<Vec<ModuleSpecifier>, AnyError> {
-    let excludes = self.cli_options.workspace.resolve_config_excludes()?;
+    let excludes = self.cli_options.workspace().resolve_config_excludes()?;
     Ok(
       files
         .iter()
diff --git a/cli/lsp/config.rs b/cli/lsp/config.rs
index 5b549fc39b..2757500d1a 100644
--- a/cli/lsp/config.rs
+++ b/cli/lsp/config.rs
@@ -1,6 +1,12 @@
 // Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
 
 use deno_ast::MediaType;
+use deno_config::deno_json::DenoJsonCache;
+use deno_config::deno_json::FmtConfig;
+use deno_config::deno_json::FmtOptionsConfig;
+use deno_config::deno_json::LintConfig;
+use deno_config::deno_json::TestConfig;
+use deno_config::deno_json::TsConfig;
 use deno_config::fs::DenoConfigFs;
 use deno_config::fs::RealDenoConfigFs;
 use deno_config::glob::FilePatterns;
@@ -11,14 +17,11 @@ use deno_config::workspace::PackageJsonDepResolution;
 use deno_config::workspace::SpecifiedImportMap;
 use deno_config::workspace::VendorEnablement;
 use deno_config::workspace::Workspace;
+use deno_config::workspace::WorkspaceCache;
+use deno_config::workspace::WorkspaceDirectory;
+use deno_config::workspace::WorkspaceDirectoryEmptyOptions;
 use deno_config::workspace::WorkspaceDiscoverOptions;
-use deno_config::workspace::WorkspaceEmptyOptions;
-use deno_config::workspace::WorkspaceMemberContext;
 use deno_config::workspace::WorkspaceResolver;
-use deno_config::DenoJsonCache;
-use deno_config::FmtConfig;
-use deno_config::FmtOptionsConfig;
-use deno_config::TsConfig;
 use deno_core::anyhow::anyhow;
 use deno_core::error::AnyError;
 use deno_core::parking_lot::Mutex;
@@ -29,6 +32,7 @@ use deno_core::serde_json;
 use deno_core::serde_json::json;
 use deno_core::serde_json::Value;
 use deno_core::ModuleSpecifier;
+use deno_lint::linter::LintConfig as DenoLintConfig;
 use deno_npm::npm_rc::ResolvedNpmRc;
 use deno_runtime::deno_node::PackageJson;
 use deno_runtime::deno_permissions::PermissionsContainer;
@@ -1107,13 +1111,12 @@ pub enum ConfigWatchedFileType {
 #[derive(Debug, Clone)]
 pub struct ConfigData {
   pub scope: Arc<ModuleSpecifier>,
-  pub workspace: Arc<Workspace>,
-  pub member_ctx: Arc<WorkspaceMemberContext>,
-  pub fmt_config: Arc<deno_config::FmtConfig>,
-  pub lint_config: Arc<deno_config::LintConfig>,
-  pub test_config: Arc<deno_config::TestConfig>,
+  pub member_dir: Arc<WorkspaceDirectory>,
+  pub fmt_config: Arc<FmtConfig>,
+  pub lint_config: Arc<LintConfig>,
+  pub test_config: Arc<TestConfig>,
   pub exclude_files: Arc<PathOrPatternSet>,
-  pub deno_lint_config: deno_lint::linter::LintConfig,
+  pub deno_lint_config: DenoLintConfig,
   pub lint_rules: Arc<ConfiguredRules>,
   pub ts_config: Arc<LspTsConfig>,
   pub byonm: bool,
@@ -1127,6 +1130,7 @@ pub struct ConfigData {
 }
 
 impl ConfigData {
+  #[allow(clippy::too_many_arguments)]
   async fn load(
     specified_config: Option<&Path>,
     scope: &ModuleSpecifier,
@@ -1136,12 +1140,13 @@ impl ConfigData {
     cached_deno_config_fs: &(dyn DenoConfigFs + Sync),
     deno_json_cache: &(dyn DenoJsonCache + Sync),
     pkg_json_cache: &(dyn PackageJsonCache + Sync),
+    workspace_cache: &(dyn WorkspaceCache + Sync),
   ) -> Self {
     let scope = Arc::new(scope.clone());
     let discover_result = match scope.to_file_path() {
       Ok(scope_dir_path) => {
         let paths = [scope_dir_path];
-        Workspace::discover(
+        WorkspaceDirectory::discover(
           match specified_config {
             Some(config_path) => {
               deno_config::workspace::WorkspaceDiscoverStart::ConfigFile(
@@ -1157,6 +1162,7 @@ impl ConfigData {
             additional_config_file_names: &[],
             deno_json_cache: Some(deno_json_cache),
             pkg_json_cache: Some(pkg_json_cache),
+            workspace_cache: Some(workspace_cache),
             discover_pkg_json: !has_flag_env_var("DENO_NO_PACKAGE_JSON"),
             config_parse_options: Default::default(),
             maybe_vendor_override: None,
@@ -1168,17 +1174,18 @@ impl ConfigData {
       Err(()) => Err(anyhow!("Scope '{}' was not a directory path.", scope)),
     };
     match discover_result {
-      Ok(workspace) => {
-        Self::load_inner(workspace, scope, settings, Some(file_fetcher)).await
+      Ok(member_dir) => {
+        Self::load_inner(member_dir, scope, settings, Some(file_fetcher)).await
       }
       Err(err) => {
         lsp_warn!("  Couldn't open workspace \"{}\": {}", scope.as_str(), err);
-        let workspace = Arc::new(Workspace::empty(WorkspaceEmptyOptions {
-          root_dir: scope.clone(),
-          use_vendor_dir: VendorEnablement::Disable,
-        }));
+        let member_dir =
+          Arc::new(WorkspaceDirectory::empty(WorkspaceDirectoryEmptyOptions {
+            root_dir: scope.clone(),
+            use_vendor_dir: VendorEnablement::Disable,
+          }));
         let mut data = Self::load_inner(
-          workspace,
+          member_dir,
           scope.clone(),
           settings,
           Some(file_fetcher),
@@ -1220,7 +1227,7 @@ impl ConfigData {
   }
 
   async fn load_inner(
-    workspace: Arc<Workspace>,
+    member_dir: Arc<WorkspaceDirectory>,
     scope: Arc<ModuleSpecifier>,
     settings: &Settings,
     file_fetcher: Option<&Arc<FileFetcher>>,
@@ -1242,9 +1249,7 @@ impl ConfigData {
         watched_files.entry(specifier).or_insert(file_type);
       };
 
-    let member_ctx = workspace.resolve_start_ctx();
-
-    if let Some(deno_json) = member_ctx.maybe_deno_json() {
+    if let Some(deno_json) = member_dir.maybe_deno_json() {
       lsp_log!(
         "  Resolved Deno configuration file: \"{}\"",
         deno_json.specifier
@@ -1256,7 +1261,7 @@ impl ConfigData {
       );
     }
 
-    if let Some(pkg_json) = member_ctx.maybe_pkg_json() {
+    if let Some(pkg_json) = member_dir.maybe_pkg_json() {
       lsp_log!("  Resolved package.json: \"{}\"", pkg_json.specifier());
 
       add_watched_file(
@@ -1266,7 +1271,7 @@ impl ConfigData {
     }
 
     // todo(dsherret): cache this so we don't load this so many times
-    let npmrc = discover_npmrc_from_workspace(&workspace)
+    let npmrc = discover_npmrc_from_workspace(&member_dir.workspace)
       .inspect(|(_, path)| {
         if let Some(path) = path {
           lsp_log!("  Resolved .npmrc: \"{}\"", path.display());
@@ -1281,51 +1286,48 @@ impl ConfigData {
       })
       .map(|(r, _)| r)
       .ok();
-    let default_file_patterns = scope
-      .to_file_path()
-      .map(FilePatterns::new_with_base)
-      .unwrap_or_else(|_| FilePatterns::new_with_base(PathBuf::from("/")));
+    let default_file_pattern_base =
+      scope.to_file_path().unwrap_or_else(|_| PathBuf::from("/"));
     let fmt_config = Arc::new(
-      member_ctx
-        .to_fmt_config(FilePatterns::new_with_base(member_ctx.dir_path()))
+      member_dir
+        .to_fmt_config(FilePatterns::new_with_base(member_dir.dir_path()))
         .inspect_err(|err| {
           lsp_warn!("  Couldn't read formatter configuration: {}", err)
         })
         .ok()
-        .unwrap_or_else(|| deno_config::FmtConfig {
-          options: Default::default(),
-          files: default_file_patterns.clone(),
+        .unwrap_or_else(|| {
+          FmtConfig::new_with_base(default_file_pattern_base.clone())
         }),
     );
     let lint_config = Arc::new(
-      member_ctx
-        .to_lint_config(FilePatterns::new_with_base(member_ctx.dir_path()))
+      member_dir
+        .to_lint_config(FilePatterns::new_with_base(member_dir.dir_path()))
         .inspect_err(|err| {
           lsp_warn!("  Couldn't read lint configuration: {}", err)
         })
         .ok()
-        .unwrap_or_else(|| deno_config::LintConfig {
-          options: Default::default(),
-          files: default_file_patterns.clone(),
+        .unwrap_or_else(|| {
+          LintConfig::new_with_base(default_file_pattern_base.clone())
         }),
     );
     let lint_rules = Arc::new(get_configured_rules(
       lint_config.options.rules.clone(),
-      member_ctx.maybe_deno_json().map(|c| c.as_ref()),
+      member_dir.maybe_deno_json().map(|c| c.as_ref()),
     ));
     let test_config = Arc::new(
-      member_ctx
-        .to_test_config(FilePatterns::new_with_base(member_ctx.dir_path()))
+      member_dir
+        .to_test_config(FilePatterns::new_with_base(member_dir.dir_path()))
         .inspect_err(|err| {
           lsp_warn!("  Couldn't read test configuration: {}", err)
         })
         .ok()
-        .unwrap_or_else(|| deno_config::TestConfig {
-          files: default_file_patterns.clone(),
+        .unwrap_or_else(|| {
+          TestConfig::new_with_base(default_file_pattern_base.clone())
         }),
     );
     let exclude_files = Arc::new(
-      workspace
+      member_dir
+        .workspace
         .resolve_config_excludes()
         .inspect_err(|err| {
           lsp_warn!("  Couldn't read config excludes: {}", err)
@@ -1334,8 +1336,9 @@ impl ConfigData {
         .unwrap_or_default(),
     );
 
-    let ts_config =
-      LspTsConfig::new(workspace.root_deno_json().map(|c| c.as_ref()));
+    let ts_config = LspTsConfig::new(
+      member_dir.workspace.root_deno_json().map(|c| c.as_ref()),
+    );
 
     let deno_lint_config =
       if ts_config.inner.0.get("jsx").and_then(|v| v.as_str()) == Some("react")
@@ -1347,21 +1350,21 @@ impl ConfigData {
           .0
           .get("jsxFragmentFactory")
           .and_then(|v| v.as_str());
-        deno_lint::linter::LintConfig {
+        DenoLintConfig {
           default_jsx_factory: default_jsx_factory.map(String::from),
           default_jsx_fragment_factory: default_jsx_fragment_factory
             .map(String::from),
         }
       } else {
-        deno_lint::linter::LintConfig {
+        DenoLintConfig {
           default_jsx_factory: None,
           default_jsx_fragment_factory: None,
         }
       };
 
-    let vendor_dir = workspace.vendor_dir_path().cloned();
+    let vendor_dir = member_dir.workspace.vendor_dir_path().cloned();
     // todo(dsherret): add caching so we don't load this so many times
-    let lockfile = resolve_lockfile_from_workspace(&workspace).map(Arc::new);
+    let lockfile = resolve_lockfile_from_workspace(&member_dir).map(Arc::new);
     if let Some(lockfile) = &lockfile {
       if let Ok(specifier) = ModuleSpecifier::from_file_path(&lockfile.filename)
       {
@@ -1370,18 +1373,22 @@ impl ConfigData {
     }
 
     let byonm = std::env::var("DENO_UNSTABLE_BYONM").is_ok()
-      || workspace.has_unstable("byonm")
+      || member_dir.workspace.has_unstable("byonm")
       || (*DENO_FUTURE
-        && workspace.package_jsons().next().is_some()
-        && workspace.node_modules_dir().is_none());
+        && member_dir.workspace.package_jsons().next().is_some()
+        && member_dir.workspace.node_modules_dir().is_none());
     if byonm {
       lsp_log!("  Enabled 'bring your own node_modules'.");
     }
-    let node_modules_dir = resolve_node_modules_dir(&workspace, byonm);
+    let node_modules_dir =
+      resolve_node_modules_dir(&member_dir.workspace, byonm);
 
     // Mark the import map as a watched file
-    if let Some(import_map_specifier) =
-      workspace.to_import_map_specifier().ok().flatten()
+    if let Some(import_map_specifier) = member_dir
+      .workspace
+      .to_import_map_specifier()
+      .ok()
+      .flatten()
     {
       add_watched_file(
         import_map_specifier.clone(),
@@ -1396,11 +1403,12 @@ impl ConfigData {
       PackageJsonDepResolution::Enabled
     };
     let mut import_map_from_settings = {
-      let is_config_import_map = member_ctx
+      let is_config_import_map = member_dir
         .maybe_deno_json()
         .map(|c| c.is_an_import_map() || c.json.import_map.is_some())
         .or_else(|| {
-          workspace
+          member_dir
+            .workspace
             .root_deno_json()
             .map(|c| c.is_an_import_map() || c.json.import_map.is_some())
         })
@@ -1417,11 +1425,12 @@ impl ConfigData {
     };
 
     let specified_import_map = {
-      let is_config_import_map = member_ctx
+      let is_config_import_map = member_dir
         .maybe_deno_json()
         .map(|c| c.is_an_import_map() || c.json.import_map.is_some())
         .or_else(|| {
-          workspace
+          member_dir
+            .workspace
             .root_deno_json()
             .map(|c| c.is_an_import_map() || c.json.import_map.is_some())
         })
@@ -1470,7 +1479,7 @@ impl ConfigData {
       }
     };
     let resolver = deno_core::unsync::spawn({
-      let workspace = workspace.clone();
+      let workspace = member_dir.clone();
       let file_fetcher = file_fetcher.cloned();
       async move {
         workspace
@@ -1508,7 +1517,7 @@ impl ConfigData {
       WorkspaceResolver::new_raw(
         scope.clone(),
         None,
-        workspace.package_jsons().cloned().collect(),
+        member_dir.workspace.package_jsons().cloned().collect(),
         pkg_json_dep_resolution,
       )
     });
@@ -1526,8 +1535,7 @@ impl ConfigData {
 
     ConfigData {
       scope,
-      workspace,
-      member_ctx: Arc::new(member_ctx),
+      member_dir,
       resolver: Arc::new(resolver),
       fmt_config,
       lint_config,
@@ -1546,14 +1554,16 @@ impl ConfigData {
     }
   }
 
-  pub fn maybe_deno_json(&self) -> Option<&Arc<deno_config::ConfigFile>> {
-    self.member_ctx.maybe_deno_json()
+  pub fn maybe_deno_json(
+    &self,
+  ) -> Option<&Arc<deno_config::deno_json::ConfigFile>> {
+    self.member_dir.maybe_deno_json()
   }
 
   pub fn maybe_pkg_json(
     &self,
   ) -> Option<&Arc<deno_config::package_json::PackageJson>> {
-    self.member_ctx.maybe_pkg_json()
+    self.member_dir.maybe_pkg_json()
   }
 }
 
@@ -1588,11 +1598,13 @@ impl ConfigTree {
     &self.scopes
   }
 
-  pub fn workspace_member_ctx_for_specifier(
+  pub fn workspace_dir_for_specifier(
     &self,
     specifier: &ModuleSpecifier,
-  ) -> Option<&Arc<WorkspaceMemberContext>> {
-    self.data_for_specifier(specifier).map(|d| &d.member_ctx)
+  ) -> Option<&WorkspaceDirectory> {
+    self
+      .data_for_specifier(specifier)
+      .map(|d| d.member_dir.as_ref())
   }
 
   pub fn config_files(&self) -> Vec<&Arc<ConfigFile>> {
@@ -1618,12 +1630,7 @@ impl ConfigTree {
     self
       .data_for_specifier(specifier)
       .map(|d| d.fmt_config.clone())
-      .unwrap_or_else(|| {
-        Arc::new(FmtConfig {
-          options: Default::default(),
-          files: FilePatterns::new_with_base(PathBuf::from("/")),
-        })
-      })
+      .unwrap_or_else(|| Arc::new(FmtConfig::new_with_base(PathBuf::from("/"))))
   }
 
   /// Returns (scope_uri, type).
@@ -1665,6 +1672,7 @@ impl ConfigTree {
     let cached_fs = CachedDenoConfigFs::default();
     let deno_json_cache = DenoJsonMemCache::default();
     let pkg_json_cache = PackageJsonMemCache::default();
+    let workspace_cache = WorkspaceMemCache::default();
     let mut scopes = BTreeMap::new();
     for (folder_uri, ws_settings) in &settings.by_workspace_folder {
       let mut ws_settings = ws_settings.as_ref();
@@ -1686,6 +1694,7 @@ impl ConfigTree {
                     &cached_fs,
                     &deno_json_cache,
                     &pkg_json_cache,
+                    &workspace_cache,
                   )
                   .await,
                 ),
@@ -1718,11 +1727,12 @@ impl ConfigTree {
           &cached_fs,
           &deno_json_cache,
           &pkg_json_cache,
+          &workspace_cache,
         )
         .await,
       );
       scopes.insert(scope, data.clone());
-      for (member_scope, _) in data.workspace.config_folders() {
+      for (member_scope, _) in data.member_dir.workspace.config_folders() {
         if scopes.contains_key(member_scope) {
           continue;
         }
@@ -1734,6 +1744,7 @@ impl ConfigTree {
           &cached_fs,
           &deno_json_cache,
           &pkg_json_cache,
+          &workspace_cache,
         )
         .await;
         scopes.insert(member_scope.as_ref().clone(), Arc::new(member_data));
@@ -1756,6 +1767,7 @@ impl ConfigTree {
               &cached_fs,
               &deno_json_cache,
               &pkg_json_cache,
+              &workspace_cache,
             )
             .await,
           ),
@@ -1775,8 +1787,8 @@ impl ConfigTree {
       config_path.to_string_lossy().to_string(),
       json_text,
     )]);
-    let workspace = Arc::new(
-      Workspace::discover(
+    let workspace_dir = Arc::new(
+      WorkspaceDirectory::discover(
         deno_config::workspace::WorkspaceDiscoverStart::ConfigFile(
           &config_path,
         ),
@@ -1789,7 +1801,7 @@ impl ConfigTree {
     );
     let data = Arc::new(
       ConfigData::load_inner(
-        workspace,
+        workspace_dir,
         Arc::new(scope.clone()),
         &Default::default(),
         None,
@@ -1802,9 +1814,9 @@ impl ConfigTree {
 }
 
 fn resolve_lockfile_from_workspace(
-  workspace: &Workspace,
+  workspace: &WorkspaceDirectory,
 ) -> Option<CliLockfile> {
-  let lockfile_path = match workspace.resolve_lockfile_path() {
+  let lockfile_path = match workspace.workspace.resolve_lockfile_path() {
     Ok(Some(value)) => value,
     Ok(None) => return None,
     Err(err) => {
@@ -1834,8 +1846,7 @@ fn resolve_node_modules_dir(
     return None;
   }
   let node_modules_dir = workspace
-    .root_folder()
-    .0
+    .root_dir()
     .to_file_path()
     .ok()?
     .join("node_modules");
@@ -1864,7 +1875,7 @@ fn resolve_lockfile_from_path(lockfile_path: PathBuf) -> Option<CliLockfile> {
 #[derive(Default)]
 struct DenoJsonMemCache(Mutex<HashMap<PathBuf, Arc<ConfigFile>>>);
 
-impl deno_config::DenoJsonCache for DenoJsonMemCache {
+impl deno_config::deno_json::DenoJsonCache for DenoJsonMemCache {
   fn get(&self, path: &Path) -> Option<Arc<ConfigFile>> {
     self.0.lock().get(path).cloned()
   }
@@ -1887,6 +1898,19 @@ impl deno_config::package_json::PackageJsonCache for PackageJsonMemCache {
   }
 }
 
+#[derive(Default)]
+struct WorkspaceMemCache(Mutex<HashMap<PathBuf, Arc<Workspace>>>);
+
+impl deno_config::workspace::WorkspaceCache for WorkspaceMemCache {
+  fn get(&self, dir_path: &Path) -> Option<Arc<Workspace>> {
+    self.0.lock().get(dir_path).cloned()
+  }
+
+  fn set(&self, dir_path: PathBuf, workspace: Arc<Workspace>) {
+    self.0.lock().insert(dir_path, workspace);
+  }
+}
+
 #[derive(Default)]
 struct CachedFsItems<T: Clone> {
   items: HashMap<PathBuf, Result<T, std::io::Error>>,
@@ -1920,7 +1944,6 @@ impl<T: Clone> CachedFsItems<T> {
 struct InnerData {
   stat_calls: CachedFsItems<deno_config::fs::FsMetadata>,
   read_to_string_calls: CachedFsItems<String>,
-  read_dir_calls: CachedFsItems<Vec<deno_config::fs::FsDirEntry>>,
 }
 
 #[derive(Default)]
@@ -1953,22 +1976,23 @@ impl DenoConfigFs for CachedDenoConfigFs {
     &self,
     path: &Path,
   ) -> Result<Vec<deno_config::fs::FsDirEntry>, std::io::Error> {
-    self
-      .0
-      .lock()
-      .read_dir_calls
-      .get(path, |path| RealDenoConfigFs.read_dir(path))
+    // no need to cache these because the workspace cache will ensure
+    // we only do read_dir calls once (read_dirs are only used for
+    // npm workspace resolution)
+    RealDenoConfigFs.read_dir(path)
   }
 }
 
 #[cfg(test)]
 mod tests {
-  use super::*;
+  use deno_config::deno_json::ConfigParseOptions;
   use deno_core::resolve_url;
   use deno_core::serde_json;
   use deno_core::serde_json::json;
   use pretty_assertions::assert_eq;
 
+  use super::*;
+
   #[test]
   fn test_config_specifier_enabled() {
     let root_uri = resolve_url("file:///").unwrap();
@@ -2234,7 +2258,7 @@ mod tests {
         ConfigFile::new(
           "{}",
           root_uri.join("deno.json").unwrap(),
-          &deno_config::ConfigParseOptions::default(),
+          &ConfigParseOptions::default(),
         )
         .unwrap(),
       )
@@ -2292,7 +2316,7 @@ mod tests {
           })
           .to_string(),
           root_uri.join("deno.json").unwrap(),
-          &deno_config::ConfigParseOptions::default(),
+          &ConfigParseOptions::default(),
         )
         .unwrap(),
       )
@@ -2318,7 +2342,7 @@ mod tests {
           })
           .to_string(),
           root_uri.join("deno.json").unwrap(),
-          &deno_config::ConfigParseOptions::default(),
+          &ConfigParseOptions::default(),
         )
         .unwrap(),
       )
@@ -2336,7 +2360,7 @@ mod tests {
           })
           .to_string(),
           root_uri.join("deno.json").unwrap(),
-          &deno_config::ConfigParseOptions::default(),
+          &ConfigParseOptions::default(),
         )
         .unwrap(),
       )
diff --git a/cli/lsp/diagnostics.rs b/cli/lsp/diagnostics.rs
index 02d51a2eb9..53a6fd7d31 100644
--- a/cli/lsp/diagnostics.rs
+++ b/cli/lsp/diagnostics.rs
@@ -23,7 +23,7 @@ use crate::resolver::SloppyImportsResolver;
 use crate::util::path::to_percent_decoded_str;
 
 use deno_ast::MediaType;
-use deno_config::glob::FilePatterns;
+use deno_config::deno_json::LintConfig;
 use deno_core::anyhow::anyhow;
 use deno_core::error::AnyError;
 use deno_core::parking_lot::RwLock;
@@ -39,6 +39,7 @@ use deno_graph::source::ResolutionMode;
 use deno_graph::Resolution;
 use deno_graph::ResolutionError;
 use deno_graph::SpecifierError;
+use deno_lint::linter::LintConfig as DenoLintConfig;
 use deno_lint::rules::LintRule;
 use deno_runtime::deno_fs;
 use deno_runtime::deno_node;
@@ -827,11 +828,8 @@ fn generate_lint_diagnostics(
       })
       .unwrap_or_else(|| {
         (
-          Arc::new(deno_config::LintConfig {
-            options: Default::default(),
-            files: FilePatterns::new_with_base(PathBuf::from("/")),
-          }),
-          deno_lint::linter::LintConfig {
+          Arc::new(LintConfig::new_with_base(PathBuf::from("/"))),
+          DenoLintConfig {
             default_jsx_factory: None,
             default_jsx_fragment_factory: None,
           },
@@ -856,8 +854,8 @@ fn generate_lint_diagnostics(
 
 fn generate_document_lint_diagnostics(
   document: &Document,
-  lint_config: &deno_config::LintConfig,
-  deno_lint_config: deno_lint::linter::LintConfig,
+  lint_config: &LintConfig,
+  deno_lint_config: DenoLintConfig,
   lint_rules: Vec<&'static dyn LintRule>,
 ) -> Vec<lsp::Diagnostic> {
   if !lint_config.files.matches_specifier(document.specifier()) {
@@ -1611,7 +1609,6 @@ fn generate_deno_diagnostics(
 
 #[cfg(test)]
 mod tests {
-
   use super::*;
   use crate::lsp::cache::LspCache;
   use crate::lsp::config::Config;
@@ -1621,7 +1618,8 @@ mod tests {
   use crate::lsp::documents::LanguageId;
   use crate::lsp::language_server::StateSnapshot;
   use crate::lsp::resolver::LspResolver;
-  use deno_config::ConfigFile;
+
+  use deno_config::deno_json::ConfigFile;
   use pretty_assertions::assert_eq;
   use std::sync::Arc;
   use test_util::TempDir;
@@ -1661,7 +1659,7 @@ mod tests {
       let config_file = ConfigFile::new(
         json_string,
         base_url,
-        &deno_config::ConfigParseOptions::default(),
+        &deno_config::deno_json::ConfigParseOptions::default(),
       )
       .unwrap();
       config.tree.inject_config_file(config_file).await;
diff --git a/cli/lsp/documents.rs b/cli/lsp/documents.rs
index 48cfebfcc4..811587a8dd 100644
--- a/cli/lsp/documents.rs
+++ b/cli/lsp/documents.rs
@@ -1597,7 +1597,9 @@ fn analyze_module(
 mod tests {
   use super::*;
   use crate::lsp::cache::LspCache;
-  use deno_config::ConfigFile;
+
+  use deno_config::deno_json::ConfigFile;
+  use deno_config::deno_json::ConfigParseOptions;
   use deno_core::serde_json;
   use deno_core::serde_json::json;
   use pretty_assertions::assert_eq;
@@ -1751,7 +1753,7 @@ console.log(b, "hello deno");
             })
             .to_string(),
             config.root_uri().unwrap().join("deno.json").unwrap(),
-            &deno_config::ConfigParseOptions::default(),
+            &ConfigParseOptions::default(),
           )
           .unwrap(),
         )
@@ -1795,7 +1797,7 @@ console.log(b, "hello deno");
             })
             .to_string(),
             config.root_uri().unwrap().join("deno.json").unwrap(),
-            &deno_config::ConfigParseOptions::default(),
+            &ConfigParseOptions::default(),
           )
           .unwrap(),
         )
diff --git a/cli/lsp/jsr.rs b/cli/lsp/jsr.rs
index 05eb76599a..b02e01fb6d 100644
--- a/cli/lsp/jsr.rs
+++ b/cli/lsp/jsr.rs
@@ -49,7 +49,7 @@ impl JsrCacheResolver {
     let info_by_name = DashMap::new();
     let mut workspace_scope_by_name = HashMap::new();
     if let Some(config_data) = config_data {
-      for jsr_pkg_config in config_data.workspace.jsr_packages() {
+      for jsr_pkg_config in config_data.member_dir.workspace.jsr_packages() {
         let Some(exports) = &jsr_pkg_config.config_file.json.exports else {
           continue;
         };
diff --git a/cli/lsp/language_server.rs b/cli/lsp/language_server.rs
index 5b6ff79f21..7db1553096 100644
--- a/cli/lsp/language_server.rs
+++ b/cli/lsp/language_server.rs
@@ -2,7 +2,7 @@
 
 use base64::Engine;
 use deno_ast::MediaType;
-use deno_config::workspace::Workspace;
+use deno_config::workspace::WorkspaceDirectory;
 use deno_config::workspace::WorkspaceDiscoverOptions;
 use deno_core::anyhow::anyhow;
 use deno_core::error::AnyError;
@@ -3556,27 +3556,30 @@ impl Inner {
     let initial_cwd = config_data
       .and_then(|d| d.scope.to_file_path().ok())
       .unwrap_or_else(|| self.initial_cwd.clone());
-    // todo: we need a way to convert config data to a Workspace
-    let workspace = Arc::new(Workspace::discover(
-      deno_config::workspace::WorkspaceDiscoverStart::Paths(&[
-        initial_cwd.clone()
-      ]),
-      &WorkspaceDiscoverOptions {
-        fs: &DenoConfigFsAdapter::new(&deno_runtime::deno_fs::RealFs),
-        deno_json_cache: None,
-        pkg_json_cache: None,
-        config_parse_options: deno_config::ConfigParseOptions {
-          include_task_comments: false,
+    let workspace = match config_data {
+      Some(d) => d.member_dir.clone(),
+      None => Arc::new(WorkspaceDirectory::discover(
+        deno_config::workspace::WorkspaceDiscoverStart::Paths(&[
+          initial_cwd.clone()
+        ]),
+        &WorkspaceDiscoverOptions {
+          fs: &DenoConfigFsAdapter::new(&deno_runtime::deno_fs::RealFs),
+          deno_json_cache: None,
+          pkg_json_cache: None,
+          workspace_cache: None,
+          config_parse_options: deno_config::deno_json::ConfigParseOptions {
+            include_task_comments: false,
+          },
+          additional_config_file_names: &[],
+          discover_pkg_json: !has_flag_env_var("DENO_NO_PACKAGE_JSON"),
+          maybe_vendor_override: if force_global_cache {
+            Some(deno_config::workspace::VendorEnablement::Disable)
+          } else {
+            None
+          },
         },
-        additional_config_file_names: &[],
-        discover_pkg_json: !has_flag_env_var("DENO_NO_PACKAGE_JSON"),
-        maybe_vendor_override: if force_global_cache {
-          Some(deno_config::workspace::VendorEnablement::Disable)
-        } else {
-          None
-        },
-      },
-    )?);
+      )?),
+    };
     let cli_options = CliOptions::new(
       Flags {
         cache_path: Some(self.cache.deno_dir().root.clone()),
diff --git a/cli/lsp/resolver.rs b/cli/lsp/resolver.rs
index 2f03842b12..7758bbd7cd 100644
--- a/cli/lsp/resolver.rs
+++ b/cli/lsp/resolver.rs
@@ -115,7 +115,7 @@ impl LspScopeResolver {
     )));
     let npm_graph_resolver = graph_resolver.create_graph_npm_resolver();
     let graph_imports = config_data
-      .and_then(|d| d.workspace.to_compiler_option_types().ok())
+      .and_then(|d| d.member_dir.workspace.to_compiler_option_types().ok())
       .map(|imports| {
         Arc::new(
           imports
@@ -513,9 +513,9 @@ fn create_graph_resolver(
   npm_resolver: Option<&Arc<dyn CliNpmResolver>>,
   node_resolver: Option<&Arc<CliNodeResolver>>,
 ) -> Arc<CliGraphResolver> {
-  let workspace = config_data.map(|d| &d.workspace);
+  let workspace = config_data.map(|d| &d.member_dir.workspace);
   let unstable_sloppy_imports =
-    workspace.is_some_and(|w| w.has_unstable("sloppy-imports"));
+    workspace.is_some_and(|dir| dir.has_unstable("sloppy-imports"));
   Arc::new(CliGraphResolver::new(CliGraphResolverOptions {
     node_resolver: node_resolver.cloned(),
     npm_resolver: npm_resolver.cloned(),
@@ -530,11 +530,12 @@ fn create_graph_resolver(
         ))
       },
     ),
-    maybe_jsx_import_source_config: workspace
-      .and_then(|cf| cf.to_maybe_jsx_import_source_config().ok().flatten()),
+    maybe_jsx_import_source_config: workspace.and_then(|workspace| {
+      workspace.to_maybe_jsx_import_source_config().ok().flatten()
+    }),
     maybe_vendor_dir: config_data.and_then(|d| d.vendor_dir.as_ref()),
     bare_node_builtins_enabled: workspace
-      .is_some_and(|cf| cf.has_unstable("bare-node-builtins")),
+      .is_some_and(|workspace| workspace.has_unstable("bare-node-builtins")),
     sloppy_imports_resolver: unstable_sloppy_imports.then(|| {
       SloppyImportsResolver::new_without_stat_cache(Arc::new(deno_fs::RealFs))
     }),
diff --git a/cli/lsp/tsc.rs b/cli/lsp/tsc.rs
index 9dabb6ca51..6c808a5e40 100644
--- a/cli/lsp/tsc.rs
+++ b/cli/lsp/tsc.rs
@@ -5012,7 +5012,7 @@ impl UserPreferences {
       // Only use workspace settings for quote style if there's no `deno.json`.
       quote_preference: if config
         .tree
-        .workspace_member_ctx_for_specifier(specifier)
+        .workspace_dir_for_specifier(specifier)
         .is_some_and(|ctx| ctx.maybe_deno_json().is_some())
       {
         base_preferences.quote_preference
@@ -5407,13 +5407,13 @@ mod tests {
     config
       .tree
       .inject_config_file(
-        deno_config::ConfigFile::new(
+        deno_config::deno_json::ConfigFile::new(
           &json!({
             "compilerOptions": ts_config,
           })
           .to_string(),
           temp_dir.uri().join("deno.json").unwrap(),
-          &deno_config::ConfigParseOptions::default(),
+          &Default::default(),
         )
         .unwrap(),
       )
diff --git a/cli/standalone/binary.rs b/cli/standalone/binary.rs
index 342c637d54..85d131f42c 100644
--- a/cli/standalone/binary.rs
+++ b/cli/standalone/binary.rs
@@ -733,18 +733,13 @@ impl<'a> DenoCompileBinaryWriter<'a> {
       InnerCliNpmResolverRef::Byonm(_) => {
         maybe_warn_different_system(&self.npm_system_info);
         let mut builder = VfsBuilder::new(root_path.to_path_buf())?;
-        for pkg_json in cli_options.workspace.package_jsons() {
+        for pkg_json in cli_options.workspace().package_jsons() {
           builder.add_file_at_path(&pkg_json.path)?;
         }
         // traverse and add all the node_modules directories in the workspace
         let mut pending_dirs = VecDeque::new();
         pending_dirs.push_back(
-          cli_options
-            .workspace
-            .root_folder()
-            .0
-            .to_file_path()
-            .unwrap(),
+          cli_options.workspace().root_dir().to_file_path().unwrap(),
         );
         while let Some(pending_dir) = pending_dirs.pop_front() {
           let entries = fs::read_dir(&pending_dir).with_context(|| {
diff --git a/cli/tools/compile.rs b/cli/tools/compile.rs
index e395c351b7..5500f9512d 100644
--- a/cli/tools/compile.rs
+++ b/cli/tools/compile.rs
@@ -77,15 +77,15 @@ pub async fn compile(
     graph
   };
 
-  let ts_config_for_emit =
-    cli_options.resolve_ts_config_for_emit(deno_config::TsConfigType::Emit)?;
+  let ts_config_for_emit = cli_options
+    .resolve_ts_config_for_emit(deno_config::deno_json::TsConfigType::Emit)?;
   let (transpile_options, emit_options) =
     crate::args::ts_config_to_transpile_and_emit_options(
       ts_config_for_emit.ts_config,
     )?;
   let parser = parsed_source_cache.as_capturing_parser();
   let root_dir_url = resolve_root_dir_from_specifiers(
-    cli_options.workspace.root_folder().0,
+    cli_options.workspace().root_dir(),
     graph.specifiers().map(|(s, _)| s).chain(
       cli_options
         .node_modules_dir_path()
diff --git a/cli/tools/doc.rs b/cli/tools/doc.rs
index 79765a91d4..138e0a47d1 100644
--- a/cli/tools/doc.rs
+++ b/cli/tools/doc.rs
@@ -187,32 +187,31 @@ pub async fn doc(flags: Flags, doc_flags: DocFlags) -> Result<(), AnyError> {
       Default::default()
     };
 
-    let rewrite_map = if let Some(config_file) =
-      cli_options.workspace.resolve_start_ctx().maybe_deno_json()
-    {
-      let config = config_file.to_exports_config()?;
+    let rewrite_map =
+      if let Some(config_file) = cli_options.start_dir.maybe_deno_json() {
+        let config = config_file.to_exports_config()?;
 
-      let rewrite_map = config
-        .clone()
-        .into_map()
-        .into_keys()
-        .map(|key| {
-          Ok((
-            config.get_resolved(&key)?.unwrap(),
-            key
-              .strip_prefix('.')
-              .unwrap_or(&key)
-              .strip_prefix('/')
-              .unwrap_or(&key)
-              .to_owned(),
-          ))
-        })
-        .collect::<Result<IndexMap<_, _>, AnyError>>()?;
+        let rewrite_map = config
+          .clone()
+          .into_map()
+          .into_keys()
+          .map(|key| {
+            Ok((
+              config.get_resolved(&key)?.unwrap(),
+              key
+                .strip_prefix('.')
+                .unwrap_or(&key)
+                .strip_prefix('/')
+                .unwrap_or(&key)
+                .to_owned(),
+            ))
+          })
+          .collect::<Result<IndexMap<_, _>, AnyError>>()?;
 
-      Some(rewrite_map)
-    } else {
-      None
-    };
+        Some(rewrite_map)
+      } else {
+        None
+      };
 
     generate_docs_directory(
       doc_nodes_by_url,
diff --git a/cli/tools/fmt.rs b/cli/tools/fmt.rs
index 040991e7c2..277a79cda0 100644
--- a/cli/tools/fmt.rs
+++ b/cli/tools/fmt.rs
@@ -52,9 +52,9 @@ use crate::cache::IncrementalCache;
 pub async fn format(flags: Flags, fmt_flags: FmtFlags) -> Result<(), AnyError> {
   if fmt_flags.is_stdin() {
     let cli_options = CliOptions::from_flags(flags)?;
-    let start_ctx = cli_options.workspace.resolve_start_ctx();
-    let fmt_config = start_ctx
-      .to_fmt_config(FilePatterns::new_with_base(start_ctx.dir_path()))?;
+    let start_dir = &cli_options.start_dir;
+    let fmt_config = start_dir
+      .to_fmt_config(FilePatterns::new_with_base(start_dir.dir_path()))?;
     let fmt_options = FmtOptions::resolve(fmt_config, &fmt_flags);
     return format_stdin(
       &fmt_flags,
diff --git a/cli/tools/installer.rs b/cli/tools/installer.rs
index 9d5b6baf37..b7b9b4d96c 100644
--- a/cli/tools/installer.rs
+++ b/cli/tools/installer.rs
@@ -3,6 +3,7 @@
 use crate::args::resolve_no_prompt;
 use crate::args::AddFlags;
 use crate::args::CaData;
+use crate::args::ConfigFlag;
 use crate::args::Flags;
 use crate::args::InstallFlags;
 use crate::args::InstallFlagsGlobal;
@@ -14,7 +15,6 @@ use crate::factory::CliFactory;
 use crate::http_util::HttpClientProvider;
 use crate::util::fs::canonicalize_path_maybe_not_exists;
 
-use deno_config::ConfigFlag;
 use deno_core::anyhow::Context;
 use deno_core::error::generic_error;
 use deno_core::error::AnyError;
@@ -571,11 +571,11 @@ fn is_in_path(dir: &Path) -> bool {
 mod tests {
   use super::*;
 
+  use crate::args::ConfigFlag;
   use crate::args::PermissionFlags;
   use crate::args::UninstallFlagsGlobal;
   use crate::args::UnstableConfig;
   use crate::util::fs::canonicalize_path;
-  use deno_config::ConfigFlag;
   use std::process::Command;
   use test_util::testdata_path;
   use test_util::TempDir;
diff --git a/cli/tools/lint/mod.rs b/cli/tools/lint/mod.rs
index 2754262657..05458a7b0d 100644
--- a/cli/tools/lint/mod.rs
+++ b/cli/tools/lint/mod.rs
@@ -8,10 +8,10 @@ use deno_ast::ModuleSpecifier;
 use deno_ast::ParsedSource;
 use deno_ast::SourceRange;
 use deno_ast::SourceTextInfo;
+use deno_config::deno_json::ConfigFile;
 use deno_config::glob::FileCollector;
 use deno_config::glob::FilePatterns;
-use deno_config::workspace::Workspace;
-use deno_config::workspace::WorkspaceMemberContext;
+use deno_config::workspace::WorkspaceDirectory;
 use deno_core::anyhow::anyhow;
 use deno_core::anyhow::bail;
 use deno_core::anyhow::Context;
@@ -118,7 +118,7 @@ pub async fn lint(flags: Flags, lint_flags: LintFlags) -> Result<(), AnyError> {
           let mut linter = WorkspaceLinter::new(
             factory.caches()?.clone(),
             factory.module_graph_creator().await?.clone(),
-            cli_options.workspace.clone(),
+            cli_options.start_dir.clone(),
             &cli_options.resolve_workspace_lint_options(&lint_flags)?,
           );
           for paths_with_options in paths_with_options_batches {
@@ -126,7 +126,7 @@ pub async fn lint(flags: Flags, lint_flags: LintFlags) -> Result<(), AnyError> {
               .lint_files(
                 paths_with_options.options,
                 lint_config.clone(),
-                paths_with_options.ctx,
+                paths_with_options.dir,
                 paths_with_options.paths,
               )
               .await?;
@@ -147,16 +147,16 @@ pub async fn lint(flags: Flags, lint_flags: LintFlags) -> Result<(), AnyError> {
     let workspace_lint_options =
       cli_options.resolve_workspace_lint_options(&lint_flags)?;
     let success = if is_stdin {
-      let start_ctx = cli_options.workspace.resolve_start_ctx();
+      let start_dir = &cli_options.start_dir;
       let reporter_lock = Arc::new(Mutex::new(create_reporter(
         workspace_lint_options.reporter_kind,
       )));
-      let lint_config = start_ctx
-        .to_lint_config(FilePatterns::new_with_base(start_ctx.dir_path()))?;
+      let lint_config = start_dir
+        .to_lint_config(FilePatterns::new_with_base(start_dir.dir_path()))?;
       let lint_options = LintOptions::resolve(lint_config, &lint_flags);
       let lint_rules = get_config_rules_err_empty(
         lint_options.rules,
-        start_ctx.maybe_deno_json().map(|c| c.as_ref()),
+        start_dir.maybe_deno_json().map(|c| c.as_ref()),
       )?;
       let file_path = cli_options.initial_cwd().join(STDIN_FILE_NAME);
       let r = lint_stdin(&file_path, lint_rules.rules, deno_lint_config);
@@ -171,7 +171,7 @@ pub async fn lint(flags: Flags, lint_flags: LintFlags) -> Result<(), AnyError> {
       let mut linter = WorkspaceLinter::new(
         factory.caches()?.clone(),
         factory.module_graph_creator().await?.clone(),
-        cli_options.workspace.clone(),
+        cli_options.start_dir.clone(),
         &workspace_lint_options,
       );
       let paths_with_options_batches =
@@ -181,7 +181,7 @@ pub async fn lint(flags: Flags, lint_flags: LintFlags) -> Result<(), AnyError> {
           .lint_files(
             paths_with_options.options,
             deno_lint_config.clone(),
-            paths_with_options.ctx,
+            paths_with_options.dir,
             paths_with_options.paths,
           )
           .await?;
@@ -197,7 +197,7 @@ pub async fn lint(flags: Flags, lint_flags: LintFlags) -> Result<(), AnyError> {
 }
 
 struct PathsWithOptions {
-  ctx: WorkspaceMemberContext,
+  dir: WorkspaceDirectory,
   paths: Vec<PathBuf>,
   options: LintOptions,
 }
@@ -210,11 +210,11 @@ fn resolve_paths_with_options_batches(
     cli_options.resolve_lint_options_for_members(lint_flags)?;
   let mut paths_with_options_batches =
     Vec::with_capacity(members_lint_options.len());
-  for (ctx, lint_options) in members_lint_options {
+  for (dir, lint_options) in members_lint_options {
     let files = collect_lint_files(cli_options, lint_options.files.clone())?;
     if !files.is_empty() {
       paths_with_options_batches.push(PathsWithOptions {
-        ctx,
+        dir,
         paths: files,
         options: lint_options,
       });
@@ -232,7 +232,7 @@ type WorkspaceModuleGraphFuture =
 struct WorkspaceLinter {
   caches: Arc<Caches>,
   module_graph_creator: Arc<ModuleGraphCreator>,
-  workspace: Arc<Workspace>,
+  workspace_dir: Arc<WorkspaceDirectory>,
   reporter_lock: Arc<Mutex<Box<dyn LintReporter + Send>>>,
   workspace_module_graph: Option<WorkspaceModuleGraphFuture>,
   has_error: Arc<AtomicFlag>,
@@ -243,7 +243,7 @@ impl WorkspaceLinter {
   pub fn new(
     caches: Arc<Caches>,
     module_graph_creator: Arc<ModuleGraphCreator>,
-    workspace: Arc<Workspace>,
+    workspace_dir: Arc<WorkspaceDirectory>,
     workspace_options: &WorkspaceLintOptions,
   ) -> Self {
     let reporter_lock =
@@ -251,7 +251,7 @@ impl WorkspaceLinter {
     Self {
       caches,
       module_graph_creator,
-      workspace,
+      workspace_dir,
       reporter_lock,
       workspace_module_graph: None,
       has_error: Default::default(),
@@ -263,14 +263,14 @@ impl WorkspaceLinter {
     &mut self,
     lint_options: LintOptions,
     lint_config: LintConfig,
-    member_ctx: WorkspaceMemberContext,
+    member_dir: WorkspaceDirectory,
     paths: Vec<PathBuf>,
   ) -> Result<(), AnyError> {
     self.file_count += paths.len();
 
     let lint_rules = get_config_rules_err_empty(
       lint_options.rules,
-      member_ctx.maybe_deno_json().map(|c| c.as_ref()),
+      member_dir.maybe_deno_json().map(|c| c.as_ref()),
     )?;
     let incremental_cache = Arc::new(IncrementalCache::new(
       self.caches.lint_incremental_cache_db(),
@@ -282,7 +282,7 @@ impl WorkspaceLinter {
     if lint_rules.no_slow_types {
       if self.workspace_module_graph.is_none() {
         let module_graph_creator = self.module_graph_creator.clone();
-        let packages = self.workspace.jsr_packages_for_publish();
+        let packages = self.workspace_dir.jsr_packages_for_publish();
         self.workspace_module_graph = Some(
           async move {
             module_graph_creator
@@ -297,7 +297,7 @@ impl WorkspaceLinter {
       }
       let workspace_module_graph_future =
         self.workspace_module_graph.as_ref().unwrap().clone();
-      let publish_config = member_ctx.maybe_package_config();
+      let publish_config = member_dir.maybe_package_config();
       if let Some(publish_config) = publish_config {
         let has_error = self.has_error.clone();
         let reporter_lock = self.reporter_lock.clone();
@@ -989,7 +989,7 @@ fn sort_diagnostics(diagnostics: &mut [JsonLintDiagnostic]) {
 
 fn get_config_rules_err_empty(
   rules: LintRulesConfig,
-  maybe_config_file: Option<&deno_config::ConfigFile>,
+  maybe_config_file: Option<&ConfigFile>,
 ) -> Result<ConfiguredRules, AnyError> {
   let lint_rules = get_configured_rules(rules, maybe_config_file);
   if lint_rules.rules.is_empty() {
@@ -1026,7 +1026,7 @@ impl ConfiguredRules {
 
 pub fn get_configured_rules(
   rules: LintRulesConfig,
-  maybe_config_file: Option<&deno_config::ConfigFile>,
+  maybe_config_file: Option<&ConfigFile>,
 ) -> ConfiguredRules {
   const NO_SLOW_TYPES_NAME: &str = "no-slow-types";
   let implicit_no_slow_types =
@@ -1060,9 +1060,7 @@ pub fn get_configured_rules(
   }
 }
 
-fn get_default_tags(
-  maybe_config_file: Option<&deno_config::ConfigFile>,
-) -> Vec<String> {
+fn get_default_tags(maybe_config_file: Option<&ConfigFile>) -> Vec<String> {
   let mut tags = Vec::with_capacity(2);
   tags.push("recommended".to_string());
   if maybe_config_file.map(|c| c.is_package()).unwrap_or(false) {
diff --git a/cli/tools/registry/mod.rs b/cli/tools/registry/mod.rs
index a22384a528..2e781cceea 100644
--- a/cli/tools/registry/mod.rs
+++ b/cli/tools/registry/mod.rs
@@ -82,9 +82,9 @@ pub async fn publish(
 
   let directory_path = cli_factory.cli_options().initial_cwd();
   let cli_options = cli_factory.cli_options();
-  let publish_configs = cli_options.workspace.jsr_packages_for_publish();
+  let publish_configs = cli_options.start_dir.jsr_packages_for_publish();
   if publish_configs.is_empty() {
-    match cli_options.workspace.resolve_start_ctx().maybe_deno_json() {
+    match cli_options.start_dir.maybe_deno_json() {
       Some(deno_json) => {
         debug_assert!(!deno_json.is_package());
         bail!(
@@ -437,7 +437,7 @@ impl PublishPreparer {
     let Some((scope, name_no_scope)) = name_no_at.split_once('/') else {
       bail!("Invalid package name, use '@<scope_name>/<package_name> format");
     };
-    let file_patterns = package.member_ctx.to_publish_config()?.files;
+    let file_patterns = package.member_dir.to_publish_config()?.files;
 
     let tarball = deno_core::unsync::spawn_blocking({
       let diagnostics_collector = diagnostics_collector.clone();
diff --git a/cli/tools/registry/pm.rs b/cli/tools/registry/pm.rs
index e3e2f1b558..4573f196db 100644
--- a/cli/tools/registry/pm.rs
+++ b/cli/tools/registry/pm.rs
@@ -5,7 +5,7 @@ use std::path::PathBuf;
 use std::sync::Arc;
 
 use deno_ast::TextChange;
-use deno_config::FmtOptionsConfig;
+use deno_config::deno_json::FmtOptionsConfig;
 use deno_core::anyhow::anyhow;
 use deno_core::anyhow::bail;
 use deno_core::anyhow::Context;
@@ -49,7 +49,7 @@ impl DenoConfigFormat {
 }
 
 enum DenoOrPackageJson {
-  Deno(Arc<deno_config::ConfigFile>, DenoConfigFormat),
+  Deno(Arc<deno_config::deno_json::ConfigFile>, DenoConfigFormat),
   Npm(Arc<deno_node::PackageJson>, Option<FmtOptionsConfig>),
 }
 
@@ -122,9 +122,9 @@ impl DenoOrPackageJson {
   fn from_flags(flags: Flags) -> Result<(Self, CliFactory), AnyError> {
     let factory = CliFactory::from_flags(flags.clone())?;
     let options = factory.cli_options();
-    let start_ctx = options.workspace.resolve_start_ctx();
+    let start_dir = &options.start_dir;
 
-    match (start_ctx.maybe_deno_json(), start_ctx.maybe_pkg_json()) {
+    match (start_dir.maybe_deno_json(), start_dir.maybe_pkg_json()) {
       // when both are present, for now,
       // default to deno.json
       (Some(deno), Some(_) | None) => Ok((
@@ -140,13 +140,14 @@ impl DenoOrPackageJson {
       (None, Some(_) | None) => {
         std::fs::write(options.initial_cwd().join("deno.json"), "{}\n")
           .context("Failed to create deno.json file")?;
+        drop(factory); // drop to prevent use
         log::info!("Created deno.json configuration file.");
         let factory = CliFactory::from_flags(flags.clone())?;
         let options = factory.cli_options().clone();
-        let start_ctx = options.workspace.resolve_start_ctx();
+        let start_dir = &options.start_dir;
         Ok((
           DenoOrPackageJson::Deno(
-            start_ctx.maybe_deno_json().cloned().ok_or_else(|| {
+            start_dir.maybe_deno_json().cloned().ok_or_else(|| {
               anyhow!("config not found, but it was just created")
             })?,
             DenoConfigFormat::Json,
diff --git a/cli/tools/repl/session.rs b/cli/tools/repl/session.rs
index 1fbfae4f3f..ee67bb0147 100644
--- a/cli/tools/repl/session.rs
+++ b/cli/tools/repl/session.rs
@@ -254,7 +254,7 @@ impl ReplSession {
         ))
       })?;
     let ts_config_for_emit = cli_options
-      .resolve_ts_config_for_emit(deno_config::TsConfigType::Emit)?;
+      .resolve_ts_config_for_emit(deno_config::deno_json::TsConfigType::Emit)?;
     let (transpile_options, _) =
       crate::args::ts_config_to_transpile_and_emit_options(
         ts_config_for_emit.ts_config,
diff --git a/cli/tools/task.rs b/cli/tools/task.rs
index 9ab54f2582..d2e16fb121 100644
--- a/cli/tools/task.rs
+++ b/cli/tools/task.rs
@@ -8,8 +8,9 @@ use crate::factory::CliFactory;
 use crate::npm::CliNpmResolver;
 use crate::task_runner;
 use crate::util::fs::canonicalize_path;
+use deno_config::deno_json::Task;
 use deno_config::workspace::TaskOrScript;
-use deno_config::workspace::Workspace;
+use deno_config::workspace::WorkspaceDirectory;
 use deno_config::workspace::WorkspaceTasksConfig;
 use deno_core::anyhow::bail;
 use deno_core::anyhow::Context;
@@ -30,8 +31,8 @@ pub async fn execute_script(
 ) -> Result<i32, AnyError> {
   let factory = CliFactory::from_flags(flags)?;
   let cli_options = factory.cli_options();
-  let start_ctx = cli_options.workspace.resolve_start_ctx();
-  if !start_ctx.has_deno_or_pkg_json() {
+  let start_dir = &cli_options.start_dir;
+  if !start_dir.has_deno_or_pkg_json() {
     bail!("deno task couldn't find deno.json(c). See https://deno.land/manual@v{}/getting_started/configuration_file", env!("CARGO_PKG_VERSION"))
   }
   let force_use_pkg_json =
@@ -44,7 +45,7 @@ pub async fn execute_script(
         v == "1"
       })
       .unwrap_or(false);
-  let tasks_config = start_ctx.to_tasks_config()?;
+  let tasks_config = start_dir.to_tasks_config()?;
   let tasks_config = if force_use_pkg_json {
     tasks_config.with_only_pkg_json()
   } else {
@@ -56,7 +57,7 @@ pub async fn execute_script(
     None => {
       print_available_tasks(
         &mut std::io::stdout(),
-        &cli_options.workspace,
+        &cli_options.start_dir,
         &tasks_config,
       )?;
       return Ok(1);
@@ -143,7 +144,7 @@ pub async fn execute_script(
       if log::log_enabled!(log::Level::Error) {
         print_available_tasks(
           &mut std::io::stderr(),
-          &cli_options.workspace,
+          &cli_options.start_dir,
           &tasks_config,
         )?;
       }
@@ -204,7 +205,7 @@ fn output_task(task_name: &str, script: &str) {
 
 fn print_available_tasks(
   writer: &mut dyn std::io::Write,
-  workspace: &Arc<Workspace>,
+  workspace_dir: &Arc<WorkspaceDirectory>,
   tasks_config: &WorkspaceTasksConfig,
 ) -> Result<(), std::io::Error> {
   writeln!(writer, "{}", colors::green("Available tasks:"))?;
@@ -228,7 +229,8 @@ fn print_available_tasks(
         .as_ref()
         .map(|config| {
           let is_root = !is_cwd_root_dir
-            && config.folder_url == *workspace.root_folder().0.as_ref();
+            && config.folder_url
+              == *workspace_dir.workspace.root_dir().as_ref();
           config
             .tasks
             .iter()
@@ -242,13 +244,10 @@ fn print_available_tasks(
             .as_ref()
             .map(|config| {
               let is_root = !is_cwd_root_dir
-                && config.folder_url == *workspace.root_folder().0.as_ref();
+                && config.folder_url
+                  == *workspace_dir.workspace.root_dir().as_ref();
               config.tasks.iter().map(move |(k, v)| {
-                (
-                  is_root,
-                  false,
-                  (k, Cow::Owned(deno_config::Task::Definition(v.clone()))),
-                )
+                (is_root, false, (k, Cow::Owned(Task::Definition(v.clone()))))
               })
             })
             .into_iter()
@@ -275,10 +274,10 @@ fn print_available_tasks(
           }
         )?;
         let definition = match task.as_ref() {
-          deno_config::Task::Definition(definition) => definition,
-          deno_config::Task::Commented { definition, .. } => definition,
+          Task::Definition(definition) => definition,
+          Task::Commented { definition, .. } => definition,
         };
-        if let deno_config::Task::Commented { comments, .. } = task.as_ref() {
+        if let Task::Commented { comments, .. } = task.as_ref() {
           let slash_slash = colors::italic_gray("//");
           for comment in comments {
             writeln!(
diff --git a/cli/tools/vendor/mod.rs b/cli/tools/vendor/mod.rs
index bbb796a2a2..73aada7cfe 100644
--- a/cli/tools/vendor/mod.rs
+++ b/cli/tools/vendor/mod.rs
@@ -53,16 +53,17 @@ pub async fn vendor(
   validate_options(&mut cli_options, &output_dir)?;
   let factory = CliFactory::from_cli_options(Arc::new(cli_options));
   let cli_options = factory.cli_options();
-  if cli_options.workspace.config_folders().len() > 1 {
+  if cli_options.workspace().config_folders().len() > 1 {
     bail!("deno vendor is not supported in a workspace. Set `\"vendor\": true` in the workspace deno.json file instead");
   }
   let entry_points =
     resolve_entry_points(&vendor_flags, cli_options.initial_cwd())?;
-  let jsx_import_source =
-    cli_options.workspace.to_maybe_jsx_import_source_config()?;
+  let jsx_import_source = cli_options
+    .workspace()
+    .to_maybe_jsx_import_source_config()?;
   let module_graph_creator = factory.module_graph_creator().await?.clone();
   let workspace_resolver = factory.workspace_resolver().await?;
-  let root_folder = cli_options.workspace.root_folder().1;
+  let root_folder = cli_options.workspace().root_folder_configs();
   let maybe_config_file = root_folder.deno_json.as_ref();
   let output = build::build(build::BuildInput {
     entry_points,
@@ -189,7 +190,7 @@ fn validate_options(
   let import_map_specifier = options
     .resolve_specified_import_map_specifier()?
     .or_else(|| {
-      let config_file = options.workspace.root_folder().1.deno_json.as_ref()?;
+      let config_file = options.workspace().root_deno_json()?;
       config_file
         .to_import_map_specifier()
         .ok()