docs: conform spec to required template

docs/specs/GRM-171.md

@@ -8,17 +8,34 @@ molecule scenario authoring, and Vikunja task lifecycle.
 `devx-workflow` and `AGENTS.md` document `make create-task -- --title`,
 which fails because `devx-create-task` forwards no arguments.
 
-## Requirements
+## Approach
 
-- REQ-1: Add `runner-ops` skill: RunnerManager/AnsibleExecutor model,
+REQ-1: Add `runner-ops` skill: RunnerManager/AnsibleExecutor model,
   stale-runner cleanup, image pruning, molecule container lifecycle,
   safe-debugging rules.
-- REQ-2: Add `molecule-testing` skill: gitea_runner scenario layout,
+REQ-2: Add `molecule-testing` skill: gitea_runner scenario layout,
   platform overrides, isolation flags, debugging.
-- REQ-3: Add `vikunja-tasks` skill: create via module call, query,
+REQ-3: Add `vikunja-tasks` skill: create via module call, query,
   close, spec-collision convention.
-- REQ-4: Fix broken `make create-task -- --title` documentation in
+REQ-4: Fix broken `make create-task -- --title` documentation in
   `devx-workflow` skill and `AGENTS.md`.
+REQ-5: Add skill validation tests (`tests/unit/test_skills_validation.py`)
+  + fix stale make-target refs and missing sections in existing skills.
+
+Preserve the colliding spec as
+[GRM-171-kireto-token-historical](GRM-171-kireto-token-historical.md).
+
+## Test Plan
+
+- `pytest tests/unit/test_skills_validation.py` passes (12 tests).
+
+## Deploy Plan
+
+Documentation/skills only — auto-merge to master; no runtime deploy.
+
+## Rollback Plan
+
+Revert the squash-merge commit; skills are inert documentation.
 
 ## Acceptance Criteria
 
@@ -26,6 +43,7 @@ which fails because `devx-create-task` forwards no arguments.
 - [x] REQ-2: `molecule-testing` skill exists.
 - [x] REQ-3: `vikunja-tasks` skill exists.
 - [x] REQ-4: create-task docs corrected.
+- [x] REQ-5: Skill validation tests added and passing.
 
 ## Out of Scope