Conciseness

The body is lean and assumes Claude's competence ("Follow each step exactly (plan has bite-sized steps)"), never explaining concepts Claude already knows. It falls just short of anchor 5 because the stop-and-ask message is repeated in three places — "If concerns: Raise them with your human partner", "Ask for clarification rather than guessing", and "Don't force through blockers - stop and ask" — which could be consolidated. Not anchor 3: there is no unnecessary explanation, only minor repetition.

Actionability

Guidance is mostly executable: exact announce phrases ("I'm using the executing-plans skill to implement this plan."), concrete per-task mechanics (mark in_progress, run the plan's named verification, confirm pass before moving on), and conditional sub-skill routing. It stops short of anchor 5 because some items are direction rather than instruction — "Review critically - identify any questions or concerns" and "Reference skills when plan says to" give no concrete procedure — and there is no example of what a concern or handoff looks like. Well above anchor 3, which would require vague direction or missing key steps.

Workflow Clarity

The sequence is explicit with real validation checkpoints and error-recovery loops: per-task verification ("Run the verification the plan names for that task... and confirm it passes before moving on"), stop conditions ("Verification fails repeatedly", unclear instructions), and a feedback loop back to review ("Partner updates the plan based on your feedback"). This matches anchor 5 ('explicit validation steps; feedback loops for error recovery; checklists'), and the destructive/batch cap does not apply.

Progressive Disclosure

No bundle files exist and none are needed: the body is a short (~55 line), single-purpose process skill organized into clear sections (Process, When to Stop, When to Revisit, Remember) with one-level cross-skill pointers (finishing-a-development-branch, delivery-flow) rather than nested references. Per the simple-skill allowance this matches 'well-organized sections' with nothing that should be split out into separate files.

Specificity

The description lists multiple concrete actions — "loads the plan, reviews it critically for gaps, works through each task with its verification steps, and reports when everything is done" — comprehensively covering the skill's behavior from load to completion. This matches the anchor 'Lists multiple specific concrete actions; comprehensive coverage'; nothing concrete about the workflow is missing.

Completeness

Both 'what' (executes a written plan end to end, with the four concrete stages) and 'when' ("entered by requests like... once delivery-flow has produced a written plan") are explicitly stated with concrete trigger phrases, plus a negative boundary ("Do not activate directly for a standalone request"). This clearly matches the anchor 'Clearly and explicitly answers both what AND when with concrete trigger phrases'; the level-4 anchor's 'when could be more explicit' criticism does not apply.

Trigger Term Quality

It quotes four natural user phrasings — "implement this plan", "run the plan", "execute the plan", "work through these tasks" — which are synonyms users would actually say when they need this skill, mirroring the anchor-5 pattern of comprehensive natural-term coverage with synonyms. The level-4 anchor ('a few natural terms missing') fits less well since the core verb space (implement/run/execute/work through) is already covered.

Distinctiveness Conflict Risk

It carves out a clear niche — "the execution stage inside the delivery-flow workflow" — and explicitly fences off misactivation ("Do not activate directly for a standalone request that has not gone through delivery-flow first"), which minimizes conflict with generic implementation or planning skills. This is a stronger fit for 'Clear niche with distinct triggers; minimal conflict risk' than the level-4 anchor, which presumes some residual overlap risk that the explicit boundary here largely eliminates.