diff --git a/teal/crates/diagnostic.tl b/teal/crates/diagnostic.tl
index 1830eeee..d474abec 100644
--- a/teal/crates/diagnostic.tl
+++ b/teal/crates/diagnostic.tl
@@ -231,7 +231,9 @@ function M.process_api_crate(crate: toml.Crate, api_crate: Crate): CrateInfo, {D
     }
     local diagnostics = {}
 
-    if crate.path then
+    if crate.workspace then
+        info.dep_kind = "workspace"
+    elseif crate.path then
         info.dep_kind = "path"
     elseif crate.git then
         info.dep_kind = "git"
diff --git a/teal/crates/toml.tl b/teal/crates/toml.tl
index fe922af0..d12fcc94 100644
--- a/teal/crates/toml.tl
+++ b/teal/crates/toml.tl
@@ -28,6 +28,7 @@ local record M
         path: Path
         git: Git
         pkg: Pkg
+        workspace: Workspace
         def: Def
         feat: Feat
         section: Section
@@ -72,6 +73,14 @@ local record M
             quote: Quotes
         end
 
+        record Workspace
+            enabled: boolean
+            text: string
+            line: integer -- 0-indexed
+            col: Range
+            decl_col: Range
+        end
+
         record Def
             enabled: boolean
             text: string
@@ -129,6 +138,7 @@ local INLINE_TABLE_GIT_PATTERN = inline_table_str_pattern("git")
 local INLINE_TABLE_PKG_PATTERN = inline_table_str_pattern("package")
 local INLINE_TABLE_FEAT_PATTERN = inline_table_str_array_pattern("features")
 local INLINE_TABLE_DEF_PATTERN = inline_table_bool_pattern("default[_-]features")
+local INLINE_TABLE_WORKSPACE_PATTERN = inline_table_bool_pattern("workspace")
 
 function M.parse_crate_features(text: string): {Feature}
     local feats: {Feature} = {}
@@ -163,6 +173,9 @@ function Crate.new(obj: Crate): Crate
     if obj.def then
         obj.def.enabled = obj.def.text ~= "false"
     end
+    if obj.workspace then
+        obj.workspace.enabled = obj.workspace.text ~= "false"
+    end
 
     return setmetatable(obj, { __index = Crate })
 end
@@ -197,6 +210,10 @@ function Crate:is_def_enabled(): boolean
     return not self.def or self.def.enabled
 end
 
+function Crate:is_workspace(): boolean
+    return not self.workspace or self.workspace.enabled
+end
+
 function Crate:package(): string
     return self.pkg and self.pkg.text or self.explicit_name
 end
@@ -320,8 +337,8 @@ function M.parse_crate_table_feat(line: string, line_nr: integer): Crate.Feat
     return nil
 end
 
-function M.parse_crate_table_def(line: string, line_nr: integer): Crate.Def
-    local bool_s, text, bool_e = line:match("^%s*default[_-]features%s*=%s*()([^%s]*)()%s*$")
+local function parse_crate_table_bool(line: string, line_nr: integer, pattern: string): table|nil
+    local bool_s, text, bool_e = line:match(pattern)
     if text then
         return {
             text = text,
@@ -334,6 +351,16 @@ function M.parse_crate_table_def(line: string, line_nr: integer): Crate.Def
     return nil
 end
 
+function M.parse_crate_table_def(line: string, line_nr: integer): Crate.Def
+    local pat = "^%s*default[_-]features%s*=%s*()([^%s]*)()%s*$"
+    return parse_crate_table_bool(line, line_nr, pat) as Crate.Def
+end
+
+function M.parse_crate_table_workspace(line: string, line_nr: integer): Crate.Def
+    local pat = "^%s*workspace%s*=%s*()([^%s]*)()%s*$"
+    return parse_crate_table_bool(line, line_nr, pat) as Crate.Def
+end
+
 local function parse_inline_table_str(crate: Crate, line: string, line_nr: integer, entry: string, pattern: string)
     local name_s, name, name_e, decl_s, quote_s, str_s, text, str_e, quote_e, decl_e = line:match(pattern)
     if name then
@@ -351,6 +378,22 @@ local function parse_inline_table_str(crate: Crate, line: string, line_nr: integ
     end
 end
 
+local function parse_inline_table_bool(crate: Crate, line: string, line_nr: integer, entry: string, pattern: string)
+    local name_s, name, name_e, decl_s, quote_s, str_s, text, str_e, quote_e, decl_e = line:match(pattern)
+    if name then
+        crate.explicit_name = name
+        crate.explicit_name_col = Range.new(name_s as integer - 1, name_e as integer - 1)
+        do
+            (crate as {string:any})[entry] = {
+                text = text,
+                line = line_nr,
+                col = Range.new(str_s as integer - 1, str_e as integer - 1),
+                decl_col = Range.new(decl_s as integer - 1, decl_e as integer - 1),
+            }
+        end
+    end
+end
+
 function M.parse_crate(line: string, line_nr: integer): Crate
     -- plain version
     do
diff --git a/teal/crates/types.tl b/teal/crates/types.tl
index 04f259fb..cb9c0bc4 100644
--- a/teal/crates/types.tl
+++ b/teal/crates/types.tl
@@ -20,6 +20,7 @@ local record M
         "registry"
         "path"
         "git"
+        "workspace"
     end
 
     record Diagnostic