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.opencode/skills/ck-debug/references/task-management-debugging.md

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+# Debug Task Management Patterns
+
+Track investigation and debugging pipelines via Claude Native Tasks (TaskCreate, TaskUpdate, TaskList).
+
+## When to Create Tasks
+
+| Debug Scope | Tasks? | Rationale |
+|-------------|--------|-----------|
+| Single bug, one file | No | Systematic debugging handles directly |
+| Multi-component investigation (3+ steps) | Yes | Track assess → collect → analyze → fix → verify |
+| Parallel log/data collection agents | Yes | Coordinate independent evidence gathering |
+| Performance investigation with multiple layers | Yes | Track bottleneck analysis per layer |
+| CI/CD pipeline failure with 3+ possible causes | Yes | Track hypothesis elimination |
+
+**3-Task Rule:** Skip task creation when investigation has <3 meaningful steps.
+
+## Investigation Pipeline as Tasks
+
+```
+TaskCreate: "Assess incident scope"      → pending
+TaskCreate: "Collect logs and evidence"  → pending, blockedBy: [assess]
+TaskCreate: "Analyze root cause"         → pending, blockedBy: [collect]
+TaskCreate: "Implement fix"              → pending, blockedBy: [analyze]
+TaskCreate: "Verify fix resolves issue"  → pending, blockedBy: [fix]
+```
+
+Maps to investigation-methodology.md 5-step process. Auto-unblocks as each step completes.
+
+## Task Schemas
+
+### Assess Task
+
+```
+TaskCreate(
+  subject: "Assess {incident} scope and impact",
+  activeForm: "Assessing incident scope",
+  description: "Gather symptoms, identify affected components, check recent changes. See investigation-methodology.md Step 1",
+  metadata: { debugStage: "assess", incident: "{incident}",
+              severity: "P1", effort: "5m" }
+)
+```
+
+### Collect Task
+
+```
+TaskCreate(
+  subject: "Collect evidence for {incident}",
+  activeForm: "Collecting evidence",
+  description: "Server logs, CI/CD logs, database state, metrics. See log-and-ci-analysis.md",
+  metadata: { debugStage: "collect", incident: "{incident}",
+              sources: "logs,ci,db", priority: "P1", effort: "10m" },
+  addBlockedBy: ["{assess-task-id}"]
+)
+```
+
+### Analyze Task
+
+```
+TaskCreate(
+  subject: "Analyze root cause of {incident}",
+  activeForm: "Analyzing root cause",
+  description: "Correlate evidence, trace execution paths, identify root cause. See systematic-debugging.md Phase 1-3",
+  metadata: { debugStage: "analyze", incident: "{incident}",
+              technique: "systematic", priority: "P1", effort: "15m" },
+  addBlockedBy: ["{collect-task-id}"]
+)
+```
+
+### Fix Task
+
+```
+TaskCreate(
+  subject: "Fix root cause: {root_cause_summary}",
+  activeForm: "Implementing fix",
+  description: "Address root cause, add defense-in-depth validation. See defense-in-depth.md",
+  metadata: { debugStage: "fix", rootCause: "{root_cause}",
+              priority: "P1", effort: "20m" },
+  addBlockedBy: ["{analyze-task-id}"]
+)
+```
+
+### Verify Task
+
+```
+TaskCreate(
+  subject: "Verify fix with fresh evidence",
+  activeForm: "Verifying fix",
+  description: "Run tests, check build, confirm issue resolved. NO CLAIMS WITHOUT EVIDENCE. See verification.md",
+  metadata: { debugStage: "verify", priority: "P1", effort: "5m" },
+  addBlockedBy: ["{fix-task-id}"]
+)
+```
+
+## Parallel Evidence Collection
+
+For multi-source investigations, spawn parallel collection agents:
+
+```
+// Parallel — no blockedBy between them
+TaskCreate(subject: "Collect CI/CD pipeline logs",
+  metadata: { debugStage: "collect", source: "ci",
+              agentIndex: 1, totalAgents: 3, priority: "P1" })
+
+TaskCreate(subject: "Collect application server logs",
+  metadata: { debugStage: "collect", source: "server",
+              agentIndex: 2, totalAgents: 3, priority: "P1" })
+
+TaskCreate(subject: "Query database for anomalies",
+  metadata: { debugStage: "collect", source: "db",
+              agentIndex: 3, totalAgents: 3, priority: "P1" })
+
+// Analyze blocks on ALL collection completing:
+TaskCreate(subject: "Analyze root cause from collected evidence",
+  addBlockedBy: ["{ci-id}", "{server-id}", "{db-id}"])
+```
+
+## Task Lifecycle
+
+```
+Assess:   pending → in_progress → completed (scope + impact identified)
+Collect:  pending → in_progress → completed (evidence gathered)
+Analyze:  pending → in_progress → completed (root cause identified)
+Fix:      pending → in_progress → completed (fix implemented)
+Verify:   pending → in_progress → completed (fresh verification evidence)
+```
+
+### Re-Investigation Cycle
+
+When fix doesn't resolve the issue → new analyze-fix-verify cycle:
+
+```
+TaskCreate(subject: "Re-analyze: fix attempt {N} failed",
+  addBlockedBy: ["{verify-task-id}"],
+  metadata: { debugStage: "analyze", cycle: 2, priority: "P1" })
+```
+
+Limit to 3 cycles. After cycle 3 → question architecture (systematic-debugging.md Phase 4.5).
+
+## Integration with Cook/Planning
+
+Debug tasks are **separate from** cook/planning phase tasks.
+
+**When cook spawns debugger:**
+1. Cook encounters failing tests → creates debug pipeline tasks
+2. Debug pipeline executes (assess → collect → analyze → fix → verify)
+3. All debug tasks complete → cook marks phase debugging as done
+4. Cook proceeds to next phase
+
+## Report Sync-Back
+
+After investigation completes, write diagnostic report per reporting-standards.md. Report persists as the "source of truth" for cross-session reference (tasks are session-scoped only).
+
+## Error Handling
+
+If `TaskCreate` fails: log warning, continue with sequential debugging. Tasks add visibility and coordination, not core functionality.