/shaktra:bugfix — Bug Fix Workflow

You orchestrate the bug fix lifecycle: investigation (new) followed by remediation (existing TDD pipeline). Investigation is detective work — bottom-up, evidence-driven. Remediation reuses the entire /shaktra:dev pipeline unchanged.

INVESTIGATION (this workflow): TRIAGE → DIAGNOSE → creates story → REMEDIATION (reuse /shaktra:dev): PLAN → RED → GREEN → QUALITY

Intent Classification

Execution Flow

1. Read Project Context

Before any work:

• Read .shaktra/settings.yml — if missing, inform user to run /shaktra:init and stop
• Read .shaktra/memory/principles.yml — for project principles (if exists)
• Read .shaktra/memory/anti-patterns.yml — for known failure patterns (if exists)
• Read .shaktra/memory/procedures.yml — for workflow learnings (if exists)

2. Classify Intent

Parse the user's request. Extract:

• Bug description — the symptom being reported
• Error context — stack traces, error messages, log snippets (if provided)
• Scope hints — file paths, function names, component references

3. Dispatch Bug Diagnostician

Spawn the bug-diagnostician agent for investigation:

You are the shaktra-bug-diagnostician agent. Investigate this bug.

Bug description: {bug_description}
Error context: {error_context or "None provided"}
Settings: {settings_path}
Briefing: {briefing_path}

Follow the 5-step diagnosis methodology. Produce a diagnosis artifact and story draft.

4. Handle Diagnosis Result

On `DIAGNOSIS_COMPLETE`:

• Read the diagnosis artifact and story draft
• Create empty .shaktra/stories/<story_id>/.observations.yml in the new story directory
• Present the diagnosis summary to the user
• If diagnose_only intent: stop here, present findings
• If bugfix intent: proceed to remediation

On `DIAGNOSIS_BLOCKED`:

• Present what was attempted and why reproduction failed
• Ask user for additional context, environment details, or reproduction steps
• Do not proceed to remediation without confirmed root cause

On `BLAST_RADIUS_FOUND`:

• Present blast radius summary with recommended additional stories
• Ask user which (if any) blast radius stories to create
• These are separate stories — they do not block the current fix

5. Route to Remediation (TDD Pipeline)

The diagnosis creates a story with scope: bug_fix. Route to /shaktra:dev with that story:

Invoke Skill(skill: "shaktra-dev", args: "develop story {story_id}")

The entire TDD pipeline runs unchanged:

• PLAN — sw-engineer plans the fix using diagnosis artifact as additional context
• RED — test-agent writes tests (the reproduction test from diagnosis + regression tests)
• GREEN — developer implements the fix
• QUALITY — sw-quality reviews at every gate (quick-check + performance/data + security checks)

6. Memory Enhancement

After remediation completes, the memory-curator consolidates observations:

# Observations from diagnosis and remediation are consolidated into:
# - principles.yml (root cause patterns, fix approaches)
# - anti-patterns.yml (repeated failure patterns)

Bug diagnosis observations are high-value for anti-pattern detection.

Agent Dispatch Reference

Completion Report

After the full bugfix lifecycle:

## Bug Fix Complete

**Bug:** {bug_id} — {symptom_summary}
**Root Cause:** {category} — {one_sentence_explanation}
**Story:** {story_id} — {story_title}
**Branch:** {branch_name}

### Diagnosis
- Symptom: {symptom_type}
- Root cause category: {RC-LOGIC|RC-DATA|...}
- Location: {file:line}
- Blast radius: {N similar patterns found, M recommended as stories}

### TDD Results
- Tests written: {count} (including reproduction test)
- Tests pass: {all_green}
- Coverage: {coverage}%

### Quality Results
- All gates: {PASS/BLOCKED}
- Review iterations: {count}

### Blast Radius Stories
- {list of recommended stories, or "None"}

### Next Step
- {recommended action}
- For production incidents, run `/shaktra:incident post-mortem {bug_id}` to generate a post-mortem and identify detection gaps

Sub-Files

References

• shaktra-reference/severity-taxonomy.md — P0-P3 severity definitions
• shaktra-stories/story-schema.md — story structure (scope: bug_fix)
• shaktra-reference/schemas/handoff-schema.md — TDD state machine (reused for remediation)

Guard Tokens

This workflow emits and responds to:

• DIAGNOSIS_COMPLETE — root cause confirmed, story created → proceed to remediation
• DIAGNOSIS_BLOCKED — cannot reproduce → stop, ask user for input
• BLAST_RADIUS_FOUND — similar patterns found → present to user
• All TDD pipeline tokens (from /shaktra:dev) apply during remediation