Lists multiple specific concrete actions: 'coding a feature, applying a patch, or making targeted file changes' along with specific mechanisms like 'approval gate, scope guardrails, evidence capture, pre-implementation confirmation prompt, test/lint verification, and status tracking'.

Clearly answers both what ('Executes a single planned implementation task with approval gate, scope guardrails, and evidence capture') AND when ('Use when a user wants to implement, run, or execute a specific task from a project plan') with explicit trigger guidance.

Includes natural keywords users would say: 'implement', 'run', 'execute', 'task', 'project plan', 'coding a feature', 'applying a patch', 'file changes'. These are terms users naturally use when requesting implementation work.

Highly distinctive with specific niche: focuses on plan-based task execution with mandatory approval gates and scope enforcement, referencing specific file path 'context/plans/{plan_id}.md'. Unlikely to conflict with general coding or file manipulation skills.

The content is lean and efficient, with no unnecessary explanations of concepts Claude already knows. Every section serves a clear purpose and the examples are appropriately sized to illustrate the patterns without padding.

Provides concrete, copy-paste ready examples including the mandatory stop prompt template and task status update format. The required sequence is explicit with numbered steps and specific actions.

Clear 8-step sequence with explicit validation checkpoints (step 3 approval gate, step 5 tests/lints/build, step 6 change classification). Includes scope expansion rule as a feedback loop for handling out-of-scope situations.

Well-organized with clear sections (scope rule, mandatory stop, required sequence, scope expansion). For a skill of this size (~50 lines), the structure is appropriate with no need for external file references. Examples are inline but appropriately sized.