feat: replace "id" by "urn"

go.mod

@@ -4,9 +4,9 @@ go 1.24.5
 
 require (
 	github.com/alecthomas/participle/v2 v2.1.4
-	github.com/goccy/go-yaml v1.18.0
 	github.com/hashicorp/go-getter/v2 v2.2.3
 	github.com/stretchr/testify v1.10.0
+	gopkg.in/yaml.v3 v3.0.1
 )
 
 require (
@@ -22,5 +22,4 @@ require (
 	github.com/mitchellh/go-testing-interface v1.0.0 // indirect
 	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
 	github.com/ulikunitz/xz v0.5.8 // indirect
-	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

go.sum

@@ -8,8 +8,6 @@ github.com/bgentry/go-netrc v0.0.0-20140422174119-9fd32a8b3d3d h1:xDfNPAt8lFiC1U
 github.com/bgentry/go-netrc v0.0.0-20140422174119-9fd32a8b3d3d/go.mod h1:6QX/PXZ00z/TKoufEY6K/a0k6AhaJrQKdFe6OfVXsa4=
 github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc h1:U9qPSI2PIWSS1VwoXQT9A3Wy9MM3WgvqSxFWenqJduM=
 github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/goccy/go-yaml v1.18.0 h1:8W7wMFS12Pcas7KU+VVkaiCng+kG8QiFeFwzFb+rwuw=
-github.com/goccy/go-yaml v1.18.0/go.mod h1:XBurs7gK8ATbW4ZPGKgcbrY1Br56PdM69F7LkFRi1kA=
 github.com/google/go-cmp v0.3.0 h1:crn/baboCvb5fXaQ0IJ1SGTsTVrWpDsCWC8EGETZijY=
 github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
 github.com/hashicorp/errwrap v1.0.0 h1:hLrqtEDnRye3+sgx6z4qVLNuviH3MR5aQ0ykNJa/UYA=

pkg/codingcontext/context.go

@@ -58,14 +58,6 @@ func New(opts ...Option) *Context {
 	return c
 }
 
-// generateIDFromPath generates an ID from a file path by extracting the filename without extension.
-// Used to auto-set ID fields in frontmatter when not explicitly provided.
-func generateIDFromPath(path string) string {
-	baseName := filepath.Base(path)
-	ext := filepath.Ext(baseName)
-	return strings.TrimSuffix(baseName, ext)
-}
-
 type markdownVisitor func(path string, fm *markdown.BaseFrontMatter) error
 
 // findMarkdownFile searches for a markdown file by name in the given directories.
@@ -139,11 +131,6 @@ func (cc *Context) findTask(taskName string) error {
 			return fmt.Errorf("failed to parse task file %s: %w", path, err)
 		}
 
-		// Automatically set ID to filename (without extension) if not set in frontmatter
-		if frontMatter.ID == "" {
-			frontMatter.ID = generateIDFromPath(path)
-		}
-
 		// Extract selector labels from task frontmatter and add them to cc.includes.
 		// This combines CLI selectors (from -s flag) with task selectors using OR logic:
 		// rules match if their frontmatter value matches ANY selector value for a given key.
@@ -244,11 +231,6 @@ func (cc *Context) findCommand(commandName string, params taskparser.Params) (st
 			return fmt.Errorf("failed to parse command file %s: %w", path, err)
 		}
 
-		// Automatically set ID to filename (without extension) if not set in frontmatter
-		if frontMatter.ID == "" {
-			frontMatter.ID = generateIDFromPath(path)
-		}
-
 		// Extract selector labels from command frontmatter and add them to cc.includes.
 		// This combines CLI selectors, task selectors, and command selectors using OR logic:
 		// rules match if their frontmatter value matches ANY selector value for a given key.
@@ -536,11 +518,6 @@ func (cc *Context) findExecuteRuleFiles(ctx context.Context, homeDir string) err
 			return fmt.Errorf("failed to parse markdown file %s: %w", path, err)
 		}
 
-		// Automatically set ID to filename (without extension) if not set in frontmatter
-		if frontmatter.ID == "" {
-			frontmatter.ID = generateIDFromPath(path)
-		}
-
 		// Expand parameters only if expand is not explicitly set to false
 		var processedContent string
 		if shouldExpandParams(frontmatter.ExpandParams) {

pkg/codingcontext/context_test.go

@@ -385,28 +385,15 @@ func TestContext_Run_Basic(t *testing.T) {
 			},
 		},
 		{
-			name: "task ID automatically set from filename",
+			name: "task with explicit URN in frontmatter",
 			setup: func(t *testing.T, dir string) {
-				createTask(t, dir, "my-task", "", "Task content")
-			},
-			taskName: "my-task",
-			wantErr:  false,
-			check: func(t *testing.T, result *Result) {
-				if result.Task.FrontMatter.ID != "my-task" {
-					t.Errorf("expected task ID 'my-task', got %q", result.Task.FrontMatter.ID)
-				}
-			},
-		},
-		{
-			name: "task with explicit ID in frontmatter",
-			setup: func(t *testing.T, dir string) {
-				createTask(t, dir, "file-name", "id: explicit-task-id", "Task content")
+				createTask(t, dir, "file-name", "id: urn:agents:task:file-name", "Task content")
 			},
 			taskName: "file-name",
 			wantErr:  false,
 			check: func(t *testing.T, result *Result) {
-				if result.Task.FrontMatter.ID != "explicit-task-id" {
-					t.Errorf("expected task ID 'explicit-task-id', got %q", result.Task.FrontMatter.ID)
+				if result.Task.FrontMatter.URN != "urn:agents:task:file-name" {
+					t.Errorf("expected task URN 'urn:agents:task:file-name', got %q", result.Task.FrontMatter.URN)
 				}
 			},
 		},
@@ -772,11 +759,11 @@ func TestContext_Run_Rules(t *testing.T) {
 			},
 		},
 		{
-			name: "rule IDs automatically set from filename",
+			name: "rule URN set from frontmatter",
 			setup: func(t *testing.T, dir string) {
 				createTask(t, dir, "id-task", "", "Task")
-				createRule(t, dir, ".agents/rules/my-rule.md", "", "Rule without ID in frontmatter")
-				createRule(t, dir, ".agents/rules/another-rule.md", "id: explicit-id", "Rule with explicit ID")
+				createRule(t, dir, ".agents/rules/my-rule.md", "id: urn:agents:rule:my-rule", "Rule with URN")
+				createRule(t, dir, ".agents/rules/another-rule.md", "id: urn:agents:rule:another", "Rule with another URN")
 			},
 			taskName: "id-task",
 			wantErr:  false,
@@ -785,29 +772,28 @@ func TestContext_Run_Rules(t *testing.T) {
 					t.Fatalf("expected 2 rules, got %d", len(result.Rules))
 				}
 
-				// Check that one rule has auto-generated ID from filename
 				foundMyRule := false
 				foundAnotherRule := false
 				for _, rule := range result.Rules {
-					if rule.FrontMatter.ID == "my-rule" {
+					if rule.FrontMatter.URN == "urn:agents:rule:my-rule" {
 						foundMyRule = true
-						if !strings.Contains(rule.Content, "Rule without ID") {
-							t.Error("my-rule should contain 'Rule without ID'")
+						if !strings.Contains(rule.Content, "Rule with URN") {
+							t.Error("my-rule should contain 'Rule with URN'")
 						}
 					}
-					if rule.FrontMatter.ID == "explicit-id" {
+					if rule.FrontMatter.URN == "urn:agents:rule:another" {
 						foundAnotherRule = true
-						if !strings.Contains(rule.Content, "Rule with explicit ID") {
-							t.Error("explicit-id should contain 'Rule with explicit ID'")
+						if !strings.Contains(rule.Content, "Rule with another URN") {
+							t.Error("another should contain 'Rule with another URN'")
 						}
 					}
 				}
 
 				if !foundMyRule {
-					t.Error("expected to find rule with auto-generated ID 'my-rule'")
+					t.Error("expected to find rule with URN 'urn:agents:rule:my-rule'")
 				}
 				if !foundAnotherRule {
-					t.Error("expected to find rule with explicit ID 'explicit-id'")
+					t.Error("expected to find rule with URN 'urn:agents:rule:another'")
 				}
 			},
 		},

pkg/codingcontext/markdown/frontmatter.go

@@ -9,24 +9,23 @@ import (
 
 // BaseFrontMatter represents parsed YAML frontmatter from markdown files
 type BaseFrontMatter struct {
-	Content map[string]any `json:"-" yaml:",inline"`
-}
-
-// TaskFrontMatter represents the standard frontmatter fields for task files
-type TaskFrontMatter struct {
-	BaseFrontMatter `yaml:",inline"`
-
-	// ID is an optional unique identifier for the task
-	// Metadata only, does not affect task matching or filtering
-	ID string `yaml:"id,omitempty" json:"id,omitempty"`
+	// URN is an optional unique identifier for the prompt in URN format (e.g. urn:agents:task:<name>)
+	// Automatically inferred from filename if not specified in frontmatter
+	URN string `yaml:"id,omitempty" json:"id,omitempty"`
 
 	// Name is an optional human-readable name for the task
 	// Metadata only, does not affect task matching or filtering
 	Name string `yaml:"name,omitempty" json:"name,omitempty"`
 
 	// Description is an optional description of what the task does
 	// Metadata only, does not affect task matching or filtering
-	Description string `yaml:"description,omitempty" json:"description,omitempty"`
+	Description string         `yaml:"description,omitempty" json:"description,omitempty"`
+	Content     map[string]any `json:"-" yaml:",inline"`
+}
+
+// TaskFrontMatter represents the standard frontmatter fields for task files
+type TaskFrontMatter struct {
+	BaseFrontMatter `yaml:",inline"`
 
 	// Agent specifies the default agent if not specified via -a flag
 	// This is not used for selecting tasks or rules, only as a default
@@ -87,18 +86,6 @@ func (t *TaskFrontMatter) UnmarshalJSON(data []byte) error {
 type CommandFrontMatter struct {
 	BaseFrontMatter `yaml:",inline"`
 
-	// ID is an optional unique identifier for the command
-	// Metadata only, does not affect command matching or filtering
-	ID string `yaml:"id,omitempty" json:"id,omitempty"`
-
-	// Name is an optional human-readable name for the command
-	// Metadata only, does not affect command matching or filtering
-	Name string `yaml:"name,omitempty" json:"name,omitempty"`
-
-	// Description is an optional description of what the command does
-	// Metadata only, does not affect command matching or filtering
-	Description string `yaml:"description,omitempty" json:"description,omitempty"`
-
 	// ExpandParams controls whether parameter expansion should occur
 	// Defaults to true if not specified
 	ExpandParams *bool `yaml:"expand,omitempty" json:"expand,omitempty"`
@@ -134,18 +121,6 @@ func (c *CommandFrontMatter) UnmarshalJSON(data []byte) error {
 type RuleFrontMatter struct {
 	BaseFrontMatter `yaml:",inline"`
 
-	// ID is an optional unique identifier for the rule
-	// Metadata only, does not affect rule matching or filtering
-	ID string `yaml:"id,omitempty" json:"id,omitempty"`
-
-	// Name is an optional human-readable name for the rule
-	// Metadata only, does not affect rule matching or filtering
-	Name string `yaml:"name,omitempty" json:"name,omitempty"`
-
-	// Description is an optional description of what the rule provides
-	// Metadata only, does not affect rule matching or filtering
-	Description string `yaml:"description,omitempty" json:"description,omitempty"`
-
 	// TaskNames specifies which task(s) this rule applies to
 	// Array of task names for OR logic
 	TaskNames []string `yaml:"task_names,omitempty" json:"task_names,omitempty"`

pkg/codingcontext/markdown/frontmatter_command_test.go

@@ -3,7 +3,7 @@ package markdown
 import (
 	"testing"
 
-	"github.com/goccy/go-yaml"
+	"gopkg.in/yaml.v3"
 )
 
 func TestCommandFrontMatter_Marshal(t *testing.T) {
@@ -20,27 +20,31 @@ func TestCommandFrontMatter_Marshal(t *testing.T) {
 		{
 			name: "command with standard id, name, description",
 			command: CommandFrontMatter{
-				ID:          "cmd-123",
-				Name:        "Standard Command",
-				Description: "This is a standard command with metadata",
+				BaseFrontMatter: BaseFrontMatter{
+					URN:         "urn:agents:command:standard",
+					Name:        "Standard Command",
+					Description: "This is a standard command with metadata",
+				},
 			},
-			want: `id: cmd-123
+			want: `id: urn:agents:command:standard
 name: Standard Command
 description: This is a standard command with metadata
 `,
 		},
 		{
 			name: "command with expand false",
 			command: CommandFrontMatter{
-				ID:          "cmd-456",
-				Name:        "No Expand Command",
-				Description: "Command with expansion disabled",
+				BaseFrontMatter: BaseFrontMatter{
+					URN:         "urn:agents:command:no-expand",
+					Name:        "No Expand Command",
+					Description: "Command with expansion disabled",
+				},
 				ExpandParams: func() *bool {
 					b := false
 					return &b
 				}(),
 			},
-			want: `id: cmd-456
+			want: `id: urn:agents:command:no-expand
 name: No Expand Command
 description: Command with expansion disabled
 expand: false
@@ -49,15 +53,17 @@ expand: false
 		{
 			name: "command with selectors",
 			command: CommandFrontMatter{
-				ID:          "cmd-789",
-				Name:        "Selector Command",
-				Description: "Command with selectors",
+				BaseFrontMatter: BaseFrontMatter{
+					URN:         "urn:agents:command:selector",
+					Name:        "Selector Command",
+					Description: "Command with selectors",
+				},
 				Selectors: map[string]any{
 					"database": "postgres",
 					"feature":  "auth",
 				},
 			},
-			want: `id: cmd-789
+			want: `id: urn:agents:command:selector
 name: Selector Command
 description: Command with selectors
 selectors:
@@ -89,27 +95,31 @@ func TestCommandFrontMatter_Unmarshal(t *testing.T) {
 	}{
 		{
 			name: "command with standard id, name, description",
-			yaml: `id: cmd-abc
+			yaml: `id: urn:agents:command:named
 name: Named Command
 description: A command with standard fields
 `,
 			want: CommandFrontMatter{
-				ID:          "cmd-abc",
-				Name:        "Named Command",
-				Description: "A command with standard fields",
+				BaseFrontMatter: BaseFrontMatter{
+					URN:         "urn:agents:command:named",
+					Name:        "Named Command",
+					Description: "A command with standard fields",
+				},
 			},
 		},
 		{
 			name: "command with expand false",
-			yaml: `id: cmd-def
+			yaml: `id: urn:agents:command:no-expand
 name: No Expand
 description: No expansion
 expand: false
 `,
 			want: CommandFrontMatter{
-				ID:          "cmd-def",
-				Name:        "No Expand",
-				Description: "No expansion",
+				BaseFrontMatter: BaseFrontMatter{
+					URN:         "urn:agents:command:no-expand",
+					Name:        "No Expand",
+					Description: "No expansion",
+				},
 				ExpandParams: func() *bool {
 					b := false
 					return &b
@@ -118,17 +128,19 @@ expand: false
 		},
 		{
 			name: "command with selectors",
-			yaml: `id: cmd-ghi
+			yaml: `id: urn:agents:command:selector
 name: Selector Command
 description: Has selectors
 selectors:
   database: postgres
   feature: auth
 `,
 			want: CommandFrontMatter{
-				ID:          "cmd-ghi",
-				Name:        "Selector Command",
-				Description: "Has selectors",
+				BaseFrontMatter: BaseFrontMatter{
+					URN:         "urn:agents:command:selector",
+					Name:        "Selector Command",
+					Description: "Has selectors",
+				},
 				Selectors: map[string]any{
 					"database": "postgres",
 					"feature":  "auth",
@@ -149,8 +161,8 @@ selectors:
 			}
 
 			// Compare fields individually
-			if got.ID != tt.want.ID {
-				t.Errorf("ID = %q, want %q", got.ID, tt.want.ID)
+			if got.URN != tt.want.URN {
+				t.Errorf("URN = %q, want %q", got.URN, tt.want.URN)
 			}
 			if got.Name != tt.want.Name {
 				t.Errorf("Name = %q, want %q", got.Name, tt.want.Name)