config: record learning M169 - use full task ID in progress header

Progress header should display full task ID (e.g., "2.0-fix-config-documentation")
not just task name ("fix-config-documentation"). Updated all header examples in
work.md to use {major}.{minor}-{task-name} format.

Author: cowwoc

.claude/cat/retrospectives/mistakes.json

@@ -1298,6 +1298,32 @@
         "catches_variations": true
       },
       "correct_behavior": "Always verify version status is not completed before suggesting it as a task target"
+    },
+    {
+      "id": "M169",
+      "timestamp": "2026-01-22T12:00:00Z",
+      "category": "documentation_violation",
+      "description": "Progress header displayed short task name instead of full task ID (missing version prefix)",
+      "root_cause": "Documentation used {task-name} placeholder instead of {major}.{minor}-{task-name} for header format",
+      "rca_method": "B",
+      "rca_method_name": "taxonomy",
+      "prevention_type": "skill",
+      "prevention_path": "${CLAUDE_PROJECT_DIR}/plugin/commands/work.md",
+      "pattern_keywords": [
+        "progress_header",
+        "task_id",
+        "version_prefix",
+        "display_format"
+      ],
+      "prevention_implemented": true,
+      "prevention_verified": true,
+      "recurrence_of": null,
+      "prevention_quality": {
+        "verification_type": "positive",
+        "fragility": "low",
+        "catches_variations": true
+      },
+      "correct_behavior": "Use full task ID format in progress header: {major}.{minor}-{task-name} (e.g., 2.0-fix-config-documentation)"
     }
   ]
 }

.claude/cat/retrospectives/retrospectives.json

@@ -1,6 +1,6 @@
 {
   "last_retrospective": "2026-01-21T14:40:12-05:00",
-  "mistake_count_since_last": 5,
+  "mistake_count_since_last": 6,
   "config": {
     "mistake_count_threshold": 10,
     "trigger_interval_days": 7

plugin/commands/work.md

@@ -45,10 +45,12 @@ This is CAT's core execution command. It:
 
 ### Header Box (MANDATORY - Display FIRST)
 
-At workflow start, display the task header BEFORE any progress lines:
+At workflow start, display the task header BEFORE any progress lines.
+
+**CRITICAL: Use full task ID** (e.g., `2.0-fix-config-documentation`), not just task name (`fix-config-documentation`).
 
 ```
-🐱 > {task-name}
+🐱 > {major}.{minor}-{task-name}
 ────────────────────────────────────────────────────────────────────
 ```
 
@@ -81,7 +83,7 @@ This workflow has 4 phases. Display a persistent horizontal progress banner that
 Phases are connected horizontally with dashes. Metrics appear on a second line below their relevant phases.
 
 ```
-🐱 > {task-name}
+🐱 > {major}.{minor}-{task-name}
 ────────────────────────────────────────────────────────────────────
 
 ● Preparing ────── ◉ Executing ────── ○ Reviewing ────── ○ Merging
@@ -96,7 +98,7 @@ Every progress display MUST include both the header AND the progress line. Never
 line without the header above it - the header identifies which task the progress refers to.
 
 ```
-🐱 > {task-name}
+🐱 > {major}.{minor}-{task-name}
 ────────────────────────────────────────────────────────────────────
 
 ◉ Preparing ────── ○ Executing ────── ○ Reviewing ────── ○ Merging
@@ -107,7 +109,7 @@ Symbols: `○` pending, `●` complete, `◉` active, `✗` failed
 **Starting state (phase 1 active):**
 
 ```
-🐱 > {task-name}
+🐱 > {major}.{minor}-{task-name}
 ────────────────────────────────────────────────────────────────────
 
 ◉ Preparing ────── ○ Executing ────── ○ Reviewing ────── ○ Merging
@@ -121,15 +123,15 @@ Header remains visible above progress banner throughout. Only the progress line
 
 When Preparing completes, Executing starts:
 ```
-🐱 > {task-name}
+🐱 > {major}.{minor}-{task-name}
 ────────────────────────────────────────────────────────────────────
 
 ● Preparing ────── ◉ Executing ────── ○ Reviewing ────── ○ Merging
 ```
 
 When subagent completes (show metrics):
 ```
-🐱 > {task-name}
+🐱 > {major}.{minor}-{task-name}
 ────────────────────────────────────────────────────────────────────
 
 ● Preparing ────── ● Executing ────── ◉ Reviewing ────── ○ Merging
@@ -138,7 +140,7 @@ When subagent completes (show metrics):
 
 When Reviewing completes:
 ```
-🐱 > {task-name}
+🐱 > {major}.{minor}-{task-name}
 ────────────────────────────────────────────────────────────────────
 
 ● Preparing ────── ● Executing ────── ● Reviewing ────── ◉ Merging
@@ -148,7 +150,7 @@ When Reviewing completes:
 **On success (final state):**
 
 ```
-🐱 > {task-name} > PASSED
+🐱 > {major}.{minor}-{task-name} > PASSED
 ────────────────────────────────────────────────────────────────────
 
 ● Preparing ────── ● Executing ────── ● Reviewing ────── ● Merging
@@ -162,7 +164,7 @@ Next: {next-task-name} (run `/cat:work` to continue)
 **On failure (show context inline):**
 
 ```
-🐱 > {task-name} > FAILED
+🐱 > {major}.{minor}-{task-name} > FAILED
 ────────────────────────────────────────────────────────────────────
 
 ● Preparing ────── ● Executing ────── ✗ Reviewing ────── ○ Merging