Task Implementation

Task Implementation Skill

Executes the approved plan during the implementation stage (and applies fixes during review_fixes). One step at a time, validated before marked done.

When to Use

• Stage implementation: next non-completed plan step.
• Stage review_fixes: applying validated Codex findings (the codex-review skill decides what; this skill governs how edits are made and validated).

Inputs

• docs/ai-context/TASK_PLAN.md (authoritative step list and statuses).
• Workflow state (aggregate counts, blockers).
• The repository.

Outputs

• Implemented, validated changes; step statuses updated in the plan; state counts synced (total_steps / completed_steps / blocked_steps).
• docs/ai-context/implementation-summary.md (template: templates/review/IMPLEMENTATION_SUMMARY.md) when all steps complete.

Procedure

Per-step loop: references/implementation-loop.md. Validation rules: references/step-validation.md. Gate before review: references/completion-gate.md.

Preconditions

• Stage is implementation or review_fixes; plan validates.

Stopping Conditions

• All steps Completed and the completion gate passes → hand to the codex-review skill (review action).
• A step blocks → record it (plan + state blocker add), keep stage implementation, report to the user. Do not continue past a blocking dependency.

Prohibited

• Marking a step Completed before its validation succeeded.
• Skipping a step silently, or marking partial work complete.
• Updating docs/ai-context/FEATURE_CHANGELOG.md (finalization-only).
• Unrecorded deviation from the plan: small technical deviations that preserve the objective are documented in the summary; business scope changes stop the work and go back to planning with the user's awareness.
• Reading the whole repository — read only files the current step needs.

Shared Rules

shared-workflow-rules.md, error-and-blocker-handling.md, git-safety-rules.md.