feature-implement-simple

Purpose

Execute low-complexity features quickly with a direct TDD flow.

Inputs

• feature_id
• feature_name
• test_steps
• complexity_score (0-15)

Outputs

• Implementation finished via direct TDD
• workflow_state.phase = execution_complete
• Feature AI metrics recorded with selected_model = haiku

State Read/Write

Read:

• docs/progress-tracker/state/progress.json

Write:

• docs/progress-tracker/state/progress.json via progress_manager.py

Execution Context Requirements

CRITICAL: All plugins/progress-tracker/prog commands MUST be executed from the project root directory.

If not already in the project root, first run:

cd <project-root>

The prog tool uses relative paths and requires being in the correct project directory to resolve files correctly.

Steps

1. Validate feature context exists and complexity bucket is simple.
2. Display execution banner with feature and model selection.
3. Invoke test-driven-development:

Skill("test-driven-development", args="<feature_name>: <one_line_description>")

4. Run focused code review on the feature diff:

Skill("requesting-code-review", args="Review simple feature implementation: <feature_name>")

5. Run completion verification gate:

Skill("verification-before-completion", args="Verify tests and acceptance evidence for <feature_name>")

6. On success, update workflow and metrics:

plugins/progress-tracker/prog set-workflow-state \
  --phase "execution_complete" \
  --next-action "verify_and_complete"

plugins/progress-tracker/prog set-feature-ai-metrics <feature_id> \
  --complexity-score <score> \
  --selected-model haiku \
  --workflow-path direct_tdd

7. Ask user to run /prog done.

Failure Modes

• If TDD skill invocation fails, return control to caller with clear failure reason.
• Do not mark feature complete here.

Commands

• plugins/progress-tracker/prog set-workflow-state ...
• plugins/progress-tracker/prog set-feature-ai-metrics ...

Examples

• Single-file config fix
• Simple form validation fix
• Straightforward UI text/state update