linter-driven-development

<objective> Meta orchestrator for Go implementation workflow: design → test → lint → refactor → review → commit. Use for any commit: features, bug fixes, refactors.

Reference: See reference.md for agent prompt templates, example reports, and output formats. </objective>

<essential_principles> Auto-Pilot Behavior: This skill triggers automatically when Go code work is detected. After permission is granted, announce: "Using go-ldd workflow for this Go code work" and proceed to pre-flight check.

Trigger Conditions:

• User requests Go code work (implement, fix, add, refactor, update, change, modify, etc.)
• User mentions "ldd" or "@ldd" (shorthand for linter-driven-development)
• Working directory contains Go project (go.mod or .go files) </essential_principles>

<quick_start> Immediate Action: Run Pre-Flight Check, then execute phases sequentially until commit-ready.

1. Pre-Flight: Verify Go project, find test/lint commands, identify plan context
2. Phase 1: Design types (if needed) → Write tests → Implement code
3. Phase 2: Run quality-analyzer agent → Route based on status
4. Phase 3: Fix loop until CLEAN_STATE
5. Phase 4: Documentation
6. Phase 5: Present commit summary with options </quick_start>

<workflow>

<pre_flight_check> ALWAYS RUN FIRST

<step name="confirm_intent"> Look for keywords: "implement", "ready", "execute", "do", "start", "continue", "next", "build", "create", "step 1", "task 2", or explicit "@linter-driven-development", "@ldd", "ldd" </step> <step name="verify_go_project"> Check that `go.mod` exists in the project root or parent directories. </step> <step name="find_commands"> **Search locations** (in order): 1. Project docs: `README.md`, `CLAUDE.md`, `agents.md` 2. Build configs: `Makefile`, `Taskfile.yaml`, `.golangci.yaml` 3. Git repository root for workspace-level commands

Extract commands:

• Test command: go test, make test, task test
• Lint command: golangci-lint run --fix, make lint, task lintwithfix
• Fallbacks: go test ./... and golangci-lint run --fix </step>

<step name="identify_plan"> Scan conversation history (last 50 messages) for step-by-step plan and which step to implement. </step>

<decision_tree> <decision condition="All conditions met" action="Announce 'Engaging autopilot mode for [description]' → Phase 1" /> <decision condition="Unclear intent" action="Ask for confirmation" /> <decision condition="No plan found" action="Suggest creating plan first (offer @code-designing)" /> <decision condition="Not Go project" action="Explain limitation" /> </decision_tree> </pre_flight_check>

<phase name="1" title="Implementation Foundation"> **Design Architecture** (if new types/functions needed): - Invoke @code-designing skill - Output: Type design plan with self-validating domain types

Write Tests First:

• Invoke @testing skill for guidance
• Write table-driven tests or testify suites
• Target: 100% coverage on new leaf types

Implement Code:

• Follow coding principles from coding_rules.md
• Keep functions <50 LOC, max 2 nesting levels
• Use self-validating types, prevent primitive obsession </phase>

<phase name="2" title="Quality Analysis"> **Invoke quality-analyzer agent** for parallel quality analysis. See `reference.md` → "Agent Prompt Templates" for full prompt.

The agent automatically:

• Executes tests, linter, and code review in parallel (40-50% faster)
• Identifies overlapping issues with root cause analysis
• Returns structured report with prioritized fixes

<routing> <route status="TEST_FAILURE" action="Enter Test Focus Mode (fix tests, retry)" /> <route status="CLEAN_STATE" action="Skip to Phase 4 (Documentation)" /> <route status="ISSUES_FOUND" action="Continue to Phase 3 (Fix Loop)" /> <route status="TOOLS_UNAVAILABLE" action="Report error, ask user to install tools" /> </routing>

<test_focus_mode> Loop until tests pass:

1. Analyze failure root cause
2. Apply fix to implementation or tests
3. Re-run quality-analyzer (mode: "full")
4. Check status → continue or exit loop

Max 10 iterations. If stuck, ask user for guidance. </test_focus_mode> </phase>

<phase name="3" title="Iterative Fix Loop"> **For each prioritized fix** (from agent's report):

1. Apply Fix:

   • Invoke @refactoring skill with file, function, issues, and root cause
   • @refactoring applies patterns: early returns, extract function, storifying, extract type, switch extraction, extract constant

2. Verify Fix (Incremental Mode):

   • Re-run quality-analyzer with mode: incremental
   • See reference.md → "Agent Prompt Templates" for prompt
   • Agent returns delta report: fixed, remaining, new issues

3. Route Based on Status:

   • TEST_FAILURE → Enter Test Focus Mode
   • CLEAN_STATE → Break loop, go to Phase 4
   • ISSUES_FOUND → Continue to next fix (or retry if no progress)

4. Safety Limits:

   • Max 10 iterations per fix loop
   • If stuck after 3 attempts → show status, ask user

Loop until agent returns CLEAN_STATE. </phase>

<phase name="4" title="Documentation"> Invoke @documentation skill: 1. Add/update package-level godoc 2. Add/update type and function documentation (WHY not WHAT) 3. Add godoc testable examples (Example_* functions) 4. If last plan step → add feature documentation to docs/

Verify: Run go doc -all ./... and ensure examples compile. </phase>

<phase name="5" title="Commit Ready"> Generate comprehensive summary. See `reference.md` → "Commit Readiness Output Format" for template.

Present user with options:

1. Commit as-is
2. Fix design debt only, then commit
3. Fix design + readability debt, then commit
4. Fix all findings, then commit
5. Refactor entire file, then commit </phase>

</workflow>

<workflow_control> <control aspect="Phases" behavior="Sequential: 1 → 2 → 3 → 4 → 5" /> <control aspect="Routing" behavior="Agent status determines path" /> <control aspect="Parallelism" behavior="Phase 2 runs 3 tools simultaneously" /> <control aspect="Incremental" behavior="After first run, agent analyzes only changed files" /> </workflow_control>

<integration> **Skills invoked**: - @code-designing (Phase 1, if needed) - @testing (Phase 1) - @refactoring (Phase 3) - @documentation (Phase 4)

Agents invoked:

• go-linter-driven-development:quality-analyzer (Phase 2 and Phase 3 verification)
  • Internally delegates to go-linter-driven-development:go-code-reviewer for design analysis

After committing:

• Feature complete → Already documented in Phase 4
• More work needed → Run this workflow again for next commit </integration>

<success_criteria> Workflow is complete when ALL of the following are true:

• Pre-flight check passed (Go project verified, commands discovered)
• Phase 1 complete (tests written, code implemented)
• Quality-analyzer returns CLEAN_STATE:
  • Tests pass
  • Linter passes (0 errors)
  • Code review clean (0 findings)
• Phase 4 complete (documentation added/updated)
• Commit summary presented to user with options
• User has chosen commit action (or deferred) </success_criteria>