with one click
fix-parallel
// [Implementation] Use when you need to analyze & fix issues with parallel fullstack-developer agents.
// [Implementation] Use when you need to analyze & fix issues with parallel fullstack-developer agents.
[HINT] Download the complete skill directory including SKILL.md and all related files
| name | fix-parallel |
| version | 1.0.0 |
| description | [Implementation] Use when you need to analyze & fix issues with parallel fullstack-developer agents. |
Goal: Fix multiple independent issues simultaneously using parallel fullstack-developer subagents.
Workflow:
Key Rules:
file:line evidenceWhen this task involves frontend or UI changes,
docs/project-reference/frontend-patterns-reference.mddocs/project-reference/scss-styling-guide.mddocs/project-reference/design-system/README.mdBe skeptical. Apply critical thinking, sequential thinking. Every claim needs traced proof, confidence percentages (Idea should be more than 80%).
file:line evidenceMANDATORY IMPORTANT MUST ATTENTION declare Confidence: X% with evidence list + file:line proof for EVERY claim.
95%+ recommend freely | 80-94% with caveats | 60-79% list unknowns | <60% STOP โ gather more evidence.
โ ๏ธ Validate Before Fix (NON-NEGOTIABLE): After root cause analysis + plan creation, MUST ATTENTION present findings + proposed fix plan to user via
AskUserQuestionand get explicit approval BEFORE any code changes. No silent fixes.
Ultrathink parallel to fix: $ARGUMENTS
IMPORTANT: Activate needed skills. Ensure token efficiency. Sacrifice grammar for concision.
debugger subagent to analyze root causes/scout-ext to find related files.ai/workspace/analysis/{issue-name}-{agent}.analysis.md. Main agent re-reads all before coordinating fixes./plan-parallel <detailed-fix-instructions> for parallel-executable fix planAskUserQuestion โ wait for user approval before launching agents.plan.md for dependency graphfullstack-developer agents in PARALLEL for independent fixes
{plan-dir}/phase-XX-*.mdSubagent Context Discipline:
tester subagent for full test suitedebugger, fix, repeat1. First: dispatch `spec-compliance-reviewer` to verify each fix matches its spec
2. Only after spec passes: dispatch `code-reviewer` for quality review
project-manager + docs-manager in parallel/prove-fix for EACH parallel fixgit-manager if yes)Example: Fix 1 (auth) + Fix 2 (payments) + Fix 3 (UI) โ Launch 3 fullstack-developer agents โ Wait โ Prove each fix โ Fix 4 (integration) sequential
AskUserQuestion. Skip if inside workflow.)MANDATORY IMPORTANT MUST ATTENTION โ NO EXCEPTIONS: If this skill was called outside a workflow, you MUST ATTENTION use
AskUserQuestionto present these options. Do NOT skip because the task seems "simple" or "obvious" โ the user decides:
If already inside a workflow, skip โ the workflow handles sequencing.
[IMPORTANT] Use
TaskCreateto break ALL work into small tasks BEFORE starting โ including tasks for each file read. This prevents context loss from long files. For simple tasks, AI MUST ATTENTION ask user whether to skip.
docs/project-reference/domain-entities-reference.md โ Domain entity catalog, relationships, cross-service sync (read when task involves business entities/models) (read directly when relevant; do not rely on hook-injected conversation text)Skill Variant: Variant of
/fixโ parallel multi-issue resolution using subagents.
AI Mistake Prevention โ Failure modes to avoid on every task:
Check downstream references before deleting. Deleting components causes documentation and code staleness cascades. Map all referencing files before removal. Verify AI-generated content against actual code. AI hallucinates APIs, class names, and method signatures. Always grep to confirm existence before documenting or referencing. Trace full dependency chain after edits. Changing a definition misses downstream variables and consumers derived from it. Always trace the full chain. Trace ALL code paths when verifying correctness. Confirming code exists is not confirming it executes. Always trace early exits, error branches, and conditional skips โ not just happy path. When debugging, ask "whose responsibility?" before fixing. Trace whether bug is in caller (wrong data) or callee (wrong handling). Fix at responsible layer โ never patch symptom site. Assume existing values are intentional โ ask WHY before changing. Before changing any constant, limit, flag, or pattern: read comments, check git blame, examine surrounding code. Verify ALL affected outputs, not just the first. Changes touching multiple stacks require verifying EVERY output. One green check is not all green checks. Holistic-first debugging โ resist nearest-attention trap. When investigating any failure, list EVERY precondition first (config, env vars, DB names, endpoints, DI registrations, data preconditions), then verify each against evidence before forming any code-layer hypothesis. Surgical changes โ apply the diff test. Bug fix: every changed line must trace directly to the bug. Don't restyle or improve adjacent code. Enhancement task: implement improvements AND announce them explicitly. Surface ambiguity before coding โ don't pick silently. If request has multiple interpretations, present each with effort estimate and ask. Never assume all-records, file-based, or more complex path.
Root Cause Debugging โ Systematic approach, never guess-and-check.
- Reproduce โ Confirm the issue exists with evidence (error message, stack trace, screenshot)
- Isolate โ Narrow to specific file/function/line using binary search + graph trace
- Trace โ Follow data flow from input to failure point. Read actual code, don't infer.
- Hypothesize โ Form theory with confidence %. State what evidence supports/contradicts it
- Verify โ Test hypothesis with targeted grep/read. One variable at a time.
- Fix โ Address root cause, not symptoms. Verify fix doesn't break callers via graph
connectionsNEVER: Guess without evidence. Fix symptoms instead of cause. Skip reproduction step.
UI System Context โ For ANY task touching
.ts,.html,.scss, or.cssfiles:MUST ATTENTION READ before implementing:
docs/project-reference/frontend-patterns-reference.mdโ component base classes, stores, formsdocs/project-reference/scss-styling-guide.mdโ BEM methodology, SCSS variables, mixins, responsivedocs/project-reference/design-system/README.mdโ design tokens, component inventory, iconsReference
docs/project-config.jsonfor project-specific paths.
Two-Stage Task Review โ Both stages MUST ATTENTION complete before marking task done.
Stage 1: Self-review โ Immediately after implementation:
- Requirements met? No regressions? Code quality acceptable?
Stage 2: Cross-review โ Via
code-reviewersubagent:
- Catches blind spots, convention drift, missed edge cases
NEVER skip Stage 2. Self-review alone misses 40%+ of issues.
Nested Task Expansion Contract โ For workflow-step invocation, the
[Workflow] ...row is only a parent container; the child skill still creates visible phase tasks.
- Call
TaskListfirst. If a matching active parent workflow row exists, setnested=trueand recordparentTaskId; otherwise run standalone.- Create one task per declared phase before phase work. When nested, prefix subjects
[N.M] $skill-name โ phase.- When nested, link the parent with
TaskUpdate(parentTaskId, addBlockedBy: [childIds]).- Orchestrators must pre-expand a child skill's phase list and link the workflow row before invoking that child skill or sub-agent.
- Mark exactly one child
in_progressbefore work andcompletedimmediately after evidence is written.- Complete the parent only after all child tasks are completed or explicitly cancelled with reason.
Blocked until:
TaskListdone, child phases created, parent linked when nested, first child markedin_progress.
Project Reference Docs Gate โ Run after task-tracking bootstrap and before target/source file reads, grep, edits, or analysis. Project docs override generic framework assumptions.
- Identify scope: file types, domain area, and operation.
- Required docs by trigger: always
docs/project-reference/lessons.md; doc lookupdocs-index-reference.md; reviewcode-review-rules.md; backend/CQRS/APIbackend-patterns-reference.md; domain/entitydomain-entities-reference.md; frontend/UIfrontend-patterns-reference.md; styles/designscss-styling-guide.md+design-system/README.md; integration testsintegration-test-reference.md; E2Ee2e-test-reference.md; feature docs/specsfeature-docs-reference.md; architecture/new areaproject-structure-reference.md.- Read every required doc that exists; skip absent docs as not applicable. Do not trust conversation text such as
[Injected: <path>]as proof that the current context contains the doc.- Before target work, state:
Reference docs read: ... | Missing/not applicable: ....Blocked until: scope evaluated, required docs checked/read,
lessons.mdconfirmed, citation emitted.
Task Tracking & External Report Persistence โ Bootstrap this before execution; then run project-reference doc prefetch before target/source work.
- Create a small task breakdown before target file reads, grep, edits, or analysis. On context loss, inspect the current task list first.
- Mark one task
in_progressbefore work andcompletedimmediately after evidence; never batch transitions.- For plan/review work, create
plans/reports/{skill}-{YYMMDD}-{HHmm}-{slug}.mdbefore first finding.- Append findings after each file/section/decision and synthesize from the report file at the end.
- Final output cites
Full report: plans/reports/{filename}.Blocked until: task breakdown exists, report path declared for plan/review work, first finding persisted before the next finding.
Critical Thinking Mindset โ Apply critical thinking, sequential thinking. Every claim needs traced proof, confidence >80% to act. Anti-hallucination: Never present guess as fact โ cite sources for every claim, admit uncertainty freely, self-check output for errors, cross-reference independently, stay skeptical of own confidence โ certainty without evidence root of all hallucination.
Understand Code First โ HARD-GATE: Do NOT write, plan, or fix until you READ existing code.
- Search 3+ similar patterns (
grep/glob) โ citefile:lineevidence- Read existing files in target area โ understand structure, base classes, conventions
- Run
python .claude/scripts/code_graph trace <file> --direction both --jsonwhen.code-graph/graph.dbexists- Map dependencies via
connectionsorcallers_ofโ know what depends on your target- Write investigation to
.ai/workspace/analysis/for non-trivial tasks (3+ files)- Re-read analysis file before implementing โ never work from memory alone
- NEVER invent new patterns when existing ones work โ match exactly or document deviation
BLOCKED until:
- [ ]Read target files- [ ]Grep 3+ patterns- [ ]Graph trace (if graph.db exists)- [ ]Assumptions verified with evidence
Evidence-Based Reasoning โ Speculation is FORBIDDEN. Every claim needs proof.
- Cite
file:line, grep results, or framework docs for EVERY claim- Declare confidence: >80% act freely, 60-80% verify first, <60% DO NOT recommend
- Cross-service validation required for architectural changes
- "I don't have enough evidence" is valid and expected output
BLOCKED until:
- [ ]Evidence file path (file:line)- [ ]Grep search performed- [ ]3+ similar patterns found- [ ]Confidence level statedForbidden without proof: "obviously", "I think", "should be", "probably", "this is because" If incomplete โ output:
"Insufficient evidence. Verified: [...]. Not verified: [...]."
Fix-Triggered Re-Review Loop โ Re-review is triggered by a FIX CYCLE, not by a round number. Review purpose:
review โ if issues โ fix โ re-reviewuntil a round finds no issues. A clean review ENDS the loop โ no further rounds required.Round 1: Main-session review. Read target files, build understanding, note issues. Output findings + verdict (PASS / FAIL).
Decision after Round 1:
- No issues found (PASS, zero findings) โ review ENDS. Do NOT spawn a fresh sub-agent for confirmation.
- Issues found (FAIL, or any non-zero findings) โ fix the issues, then spawn a fresh sub-agent for Round 2 re-review.
Fresh sub-agent re-review (after every fix cycle): Spawn a NEW
Agenttool call โ never reuse a prior agent. Sub-agent re-reads ALL files from scratch with ZERO memory of prior rounds. SeeSYNC:fresh-context-reviewfor the spawn mechanism andSYNC:review-protocol-injectionfor the canonical Agent prompt template. Each fresh round must catch:
- Cross-cutting concerns missed in the prior round
- Interaction bugs between changed files
- Convention drift (new code vs existing patterns)
- Missing pieces that should exist but don't
- Subtle edge cases the prior round rationalized away
- Regressions introduced by the fixes themselves
Loop termination: After each fresh round, repeat the same decision: clean โ END; issues โ fix โ next fresh round. Continue until a round finds zero issues, or 3 fresh-subagent rounds max, then escalate to user via
AskUserQuestion.Rules:
- A clean Round 1 ENDS the review โ no mandatory Round 2
- NEVER skip the fresh sub-agent re-review after a fix cycle (every fix invalidates the prior verdict)
- NEVER reuse a sub-agent across rounds โ every iteration spawns a NEW Agent call
- Main agent READS sub-agent reports but MUST NOT filter, reinterpret, or override findings
- Max 3 fresh-subagent rounds per review โ if still FAIL, escalate via
AskUserQuestion(do NOT silently loop)- Track round count in conversation context (session-scoped)
- Final verdict must incorporate ALL rounds executed
Report must include
## Round N Findings (Fresh Sub-Agent)for every round Nโฅ2 that was executed.
Fresh Sub-Agent Review โ Eliminate orchestrator confirmation bias via isolated sub-agents.
Why: The main agent knows what it (or
/cook) just fixed and rationalizes findings accordingly. A fresh sub-agent has ZERO memory, re-reads from scratch, and catches what the main agent dismissed. Sub-agent bias is mitigated by (1) fresh context, (2) verbatim protocol injection, (3) main agent not filtering the report.When: ONLY after a fix cycle. A review round that finds zero issues ENDS the loop โ do NOT spawn a confirmation sub-agent. A review round that finds issues triggers: fix โ fresh sub-agent re-review.
How:
- Spawn a NEW
Agenttool call โ usecode-reviewersubagent_type for code reviews,general-purposefor plan/doc/artifact reviews- Inject ALL required review protocols VERBATIM into the prompt โ see
SYNC:review-protocol-injectionfor the full list and template. Never reference protocols by file path; AI compliance drops behind file-read indirection (seeSYNC:shared-protocol-duplication-policy)- Sub-agent re-reads ALL target files from scratch via its own tool calls โ never pass file contents inline in the prompt
- Sub-agent writes structured report to
plans/reports/{review-type}-round{N}-{date}.md- Main agent reads the report, integrates findings into its own report, DOES NOT override or filter
Rules:
- SKIP fresh sub-agent when the prior round found zero issues (no fixes = nothing new to verify)
- NEVER skip fresh sub-agent after a fix cycle โ every fix invalidates the prior verdict
- NEVER reuse a sub-agent across rounds โ every fresh round spawns a NEW
Agentcall- Max 3 fresh-subagent rounds per review โ escalate via
AskUserQuestionif still failing; do NOT silently loop or fall back to any prior protocol- Track iteration count in conversation context (session-scoped, no persistent files)
Review Protocol Injection โ Every fresh sub-agent review prompt MUST embed 10 protocol blocks VERBATIM. The template below has ALL 10 bodies already expanded inline. Copy the template wholesale into the Agent call's
promptfield at runtime, replacing only the{placeholders}in Task / Round / Reference Docs / Target Files / Output sections with context-specific values. Do NOT touch the embedded protocol sections.Why inline expansion: Placeholder markers would force file-read indirection at runtime. AI compliance drops significantly behind indirection (see
SYNC:shared-protocol-duplication-policy). Therefore the template carries all 10 protocol bodies pre-embedded.
code-reviewer โ for code reviews (reviewing source files, git diffs, implementation)general-purpose โ for plan / doc / artifact reviews (reviewing markdown plans, docs, specs)Agent({
description: "Fresh Round {N} review",
subagent_type: "code-reviewer",
prompt: `
## Task
{review-specific task โ e.g., "Review all uncommitted changes for code quality" | "Review plan files under {plan-dir}" | "Review integration tests in {path}"}
## Round
Round {N}. You have ZERO memory of prior rounds. Re-read all target files from scratch via your own tool calls. Do NOT trust anything from the main agent beyond this prompt.
## Protocols (follow VERBATIM โ these are non-negotiable)
### Evidence-Based Reasoning
Speculation is FORBIDDEN. Every claim needs proof.
1. Cite file:line, grep results, or framework docs for EVERY claim
2. Declare confidence: >80% act freely, 60-80% verify first, <60% DO NOT recommend
3. Cross-service validation required for architectural changes
4. "I don't have enough evidence" is valid and expected output
BLOCKED until: Evidence file path (file:line) provided; Grep search performed; 3+ similar patterns found; Confidence level stated.
Forbidden without proof: "obviously", "I think", "should be", "probably", "this is because".
If incomplete โ output: "Insufficient evidence. Verified: [...]. Not verified: [...]."
### Bug Detection
MUST check categories 1-4 for EVERY review. Never skip.
1. Null Safety: Can params/returns be null? Are they guarded? Optional chaining gaps? .find() returns checked?
2. Boundary Conditions: Off-by-one (< vs <=)? Empty collections handled? Zero/negative values? Max limits?
3. Error Handling: Try-catch scope correct? Silent swallowed exceptions? Error types specific? Cleanup in finally?
4. Resource Management: Connections/streams closed? Subscriptions unsubscribed on destroy? Timers cleared? Memory bounded?
5. Concurrency (if async): Missing await? Race conditions on shared state? Stale closures? Retry storms?
6. Stack-Specific: JS: === vs ==, typeof null. C#: async void, missing using, LINQ deferred execution.
Classify: CRITICAL (crash/corrupt) โ FAIL | HIGH (incorrect behavior) โ FAIL | MEDIUM (edge case) โ WARN | LOW (defensive) โ INFO.
### Design Patterns Quality
Priority checks for every code change:
1. DRY via OOP: Same-suffix classes (*Entity, *Dto, *Service) MUST share base class. 3+ similar patterns โ extract to shared abstraction.
2. Right Responsibility: Logic in LOWEST layer (Entity > Domain Service > Application Service > Controller). Never business logic in controllers.
3. SOLID: Single responsibility (one reason to change). Open-closed (extend, don't modify). Liskov (subtypes substitutable). Interface segregation (small interfaces). Dependency inversion (depend on abstractions).
4. After extraction/move/rename: Grep ENTIRE scope for dangling references. Zero tolerance.
5. YAGNI gate: NEVER recommend patterns unless 3+ occurrences exist. Don't extract for hypothetical future use.
Anti-patterns to flag: God Object, Copy-Paste inheritance, Circular Dependency, Leaky Abstraction.
### Logic & Intention Review
Verify WHAT code does matches WHY it was changed.
1. Change Intention Check: Every changed file MUST serve the stated purpose. Flag unrelated changes as scope creep.
2. Happy Path Trace: Walk through one complete success scenario through changed code.
3. Error Path Trace: Walk through one failure/edge case scenario through changed code.
4. Acceptance Mapping: If plan context available, map every acceptance criterion to a code change.
NEVER mark review PASS without completing both traces (happy + error path).
### Test Spec Verification
Map changed code to test specifications.
1. From changed files โ find TC-{FEAT}-{NNN} in docs/business-features/{Service}/detailed-features/{Feature}.md Section 15.
2. Every changed code path MUST map to a corresponding TC (or flag as "needs TC").
3. New functions/endpoints/handlers โ flag for test spec creation.
4. Verify TC evidence fields point to actual code (file:line, not stale references).
5. Auth changes โ TC-{FEAT}-02x exist? Data changes โ TC-{FEAT}-01x exist?
6. If no specs exist โ log gap and recommend /tdd-spec.
NEVER skip test mapping. Untested code paths are the #1 source of production bugs.
### Fix-Layer Accountability
NEVER fix at the crash site. Trace the full flow, fix at the owning layer. The crash site is a SYMPTOM, not the cause.
MANDATORY before ANY fix:
1. Trace full data flow โ Map the complete path from data origin to crash site across ALL layers (storage โ backend โ API โ frontend โ UI). Identify where bad state ENTERS, not where it CRASHES.
2. Identify the invariant owner โ Which layer's contract guarantees this value is valid? Fix at the LOWEST layer that owns the invariant, not the highest layer that consumes it.
3. One fix, maximum protection โ If fix requires touching 3+ files with defensive checks, you are at the wrong layer โ go lower.
4. Verify no bypass paths โ Confirm all data flows through the fix point. Check for direct construction skipping factories, clone/spread without re-validation, raw data not wrapped in domain models, mutations outside the model layer.
BLOCKED until: Full data flow traced (origin โ crash); Invariant owner identified with file:line evidence; All access sites audited (grep count); Fix layer justified (lowest layer that protects most consumers).
Anti-patterns (REJECT): "Fix it where it crashes" (crash site โ cause site, trace upstream); "Add defensive checks at every consumer" (scattered defense = wrong layer); "Both fix is safer" (pick ONE authoritative layer).
### Rationalization Prevention
AI skips steps via these evasions. Recognize and reject:
- "Too simple for a plan" โ Simple + wrong assumptions = wasted time. Plan anyway.
- "I'll test after" โ RED before GREEN. Write/verify test first.
- "Already searched" โ Show grep evidence with file:line. No proof = no search.
- "Just do it" โ Still need TaskCreate. Skip depth, never skip tracking.
- "Just a small fix" โ Small fix in wrong location cascades. Verify file:line first.
- "Code is self-explanatory" โ Future readers need evidence trail. Document anyway.
- "Combine steps to save time" โ Combined steps dilute focus. Each step has distinct purpose.
### Graph-Assisted Investigation
MANDATORY when .code-graph/graph.db exists.
HARD-GATE: MUST run at least ONE graph command on key files before concluding any investigation.
Pattern: Grep finds files โ trace --direction both reveals full system flow โ Grep verifies details.
- Investigation/Scout: trace --direction both on 2-3 entry files
- Fix/Debug: callers_of on buggy function + tests_for
- Feature/Enhancement: connections on files to be modified
- Code Review: tests_for on changed functions
- Blast Radius: trace --direction downstream
CLI: python .claude/scripts/code_graph {command} --json. Use --node-mode file first (10-30x less noise), then --node-mode function for detail.
### Understand Code First
HARD-GATE: Do NOT write, plan, or fix until you READ existing code.
1. Search 3+ similar patterns (grep/glob) โ cite file:line evidence.
2. Read existing files in target area โ understand structure, base classes, conventions.
3. Run python .claude/scripts/code_graph trace <file> --direction both --json when .code-graph/graph.db exists.
4. Map dependencies via connections or callers_of โ know what depends on your target.
5. Write investigation to .ai/workspace/analysis/ for non-trivial tasks (3+ files).
6. Re-read analysis file before implementing โ never work from memory alone.
7. NEVER invent new patterns when existing ones work โ match exactly or document deviation.
BLOCKED until: Read target files; Grep 3+ patterns; Graph trace (if graph.db exists); Assumptions verified with evidence.
## Reference Docs (READ before reviewing)
- docs/project-reference/code-review-rules.md
- {skill-specific reference docs โ e.g., integration-test-reference.md for integration-test-review; backend-patterns-reference.md for backend reviews; frontend-patterns-reference.md for frontend reviews}
## Target Files
{explicit file list OR "run git diff to see uncommitted changes" OR "read all files under {plan-dir}"}
## Output
Write a structured report to plans/reports/{review-type}-round{N}-{date}.md with sections:
- Status: PASS | FAIL
- Issue Count: {number}
- Critical Issues (with file:line evidence)
- High Priority Issues (with file:line evidence)
- Medium / Low Issues
- Cross-cutting findings
Return the report path and status to the main agent.
Every finding MUST have file:line evidence. Speculation is forbidden.
`
})
{placeholders} in Task / Round / Reference Docs / Target Files / Output sections with context-specific contentcode-reviewer subagent_type for code reviews and general-purpose for plan / doc / artifact reviewsEstimation Framework โ Bottom-up first; SP DERIVED; output min-max range when likely โฅ3d. Stack-agnostic. Baseline: 3-5yr dev, 6 productive hrs/day. AI estimate assumes Claude Code + project context.
Method:
- Blast Radius pass (below) โ drives code AND test cost
- Decompose phases โ hours/phase โ
bottom_up_hours = ฮฃ phase_hourslikely_days = ceil(bottom_up_hours / 6) ร productivity_factor- Sum Risk Margin (base + add-ons) โ
max_days = likely_days ร (1 + margin)min_days = likely_days ร 0.9- Output as range when
likely_days โฅ3; single point allowed<3(still record margin)man_days_ai= same range ร AI speedupstory_pointsDERIVED fromlikely_daysvia SP-Days โ NEVER driver. Disagreement >50% โ trust bottom-upProductivity factor: 0.8 strong scaffolding+codegen+AI hooks ยท 1.0 mature default ยท 1.2 weak patterns ยท 1.5 greenfield
Cost Driver Heuristic (apply BEFORE work-type row):
- UI dominates in CRUD/business apps โ 1.5-3x backend (states, validation, responsive, a11y, polish)
- Backend dominates ONLY: multi-aggregate invariants, cross-service contracts, schema migrations, heavy query/perf, new event flows
Reuse-vs-Create axis (PRIMARY lever, per layer):
UI tier Cost Reuse component on existing screen 0.1-0.3d Add control/column to existing screen 0.3-0.8d Compose components into NEW screen 1-2d NEW screen, custom layout/states/validation 2-4d NEW shared/common component (themed, tested) 3-6d+
Backend tier Cost Reuse query/handler from new place 0.1-0.3d Small update existing handler/entity 0.3-0.8d NEW query on existing repo/model 0.5-1d NEW command/handler on existing aggregate (additive) 1-2d NEW aggregate/entity (repo, validation, events) 2-4d NEW cross-service contract OR schema migration 2-4d each Multi-aggregate invariant / heavy domain rule 3-5d Rule: Sum tiers across UI+backend+tests, apply productivity factor. Reuse short-circuits tiers โ call out.
Test-Scope drivers (compute test_count EXPLICITLY โ "+tests" hand-wave is #1 failure):
Driver Count Happy-path journeys 1 per story / AC main flow State-machine transitions reachable transitions ร allowed actors Multi-entity state combos state(A) ร state(B) โ REACHABLE only, not Cartesian Authorization matrix (owner, non-owner, elevated, unauth) ร each mutation Validation rules 1 per required field / boundary / format / cross-field UI states (per new screen/dialog) happy, loading, empty, error, partial โ present only Negative paths / invariants 1 per violatable business rule
Test tier (Trad, incl. setup+assert+flake) Cost 1-5 cases, fixtures reused 0.3-0.5d 6-12 cases, 1 new fixture 0.5-1d 13-25 cases, multi-entity setup 1-2d 26-50 cases OR new state-machine coverage 2-3d >50 cases OR full E2E journey 3-5d Test multipliers: new fixture/seed harness +0.5d ยท cross-service/bus assertion +0.3d each ยท UI E2E ร1.5 ยท each new role +1-2 cases
Blast Radius (mandatory pre-pass โ affects code AND test):
- Files/components directly modified โ count
- Of those, "complex" (>500 LOC, multi-handler, central, frequently-modified) โ count
- Downstream consumers (callers, event subscribers, cross-service) โ list
- Shared/common code touched (multi-app blast) โ yes/no
- Regression scope โ areas needing re-test
Rule: Complex touch โ add
risk_factors. Each downstream consumer โ +1-3 regression cases. Blast >5 areas OR >2 complex โ re-evaluate SPLIT before estimating.Risk Margin (drives max bound):
likely_days Base margin <1d trivial +10% 1-2d small additive +20% 3-4d real feature +35% 5-7d large +50% 8-10d very large +75% >10d +100% AND flag SHOULD SPLIT Risk-factor add-ons (additive โ enumerate in
risk_factors):
Factor +margin touches-complex-existing-feature(>500 LOC, multi-handler, central)+20% cross-service-contractchange+25% schema-migration-on-populated-data+25% new-tech-or-unfamiliar-pattern+30% regression-fan-out(โฅ3 downstream areas re-test)+20% performance-or-latency-critical+20% concurrency-race-event-ordering+25% shared-common-code(multi-consumer/multi-app)+25% unclear-requirements-or-design+30% Collapse rule: total margin >100% โ STOP, split (padding past 2x is dishonesty). Margin <15% on
likely_days โฅ5โ under-estimated, widen.Work-Type Caps (hard ceilings on
likely_days):
Work type Max SP Max likely Single field / config flag / style fix 1 0.5d Add property to existing model + bind to existing UI 2 1d Additive endpoint + minor UI control (button/menu/column), reuses fixtures 3 2-3d Additive endpoint + NEW UI surface OR additive multi-layer + new domain rule + 2+ test files 5 3-5d NEW model/aggregate OR migration OR cross-module contract OR heavy test (>1.5d) OR NEW UI + non-trivial backend 8 5-7d NEW UI surface + (NEW aggregate OR migration OR cross-service contract) 13 SHOULD split Cross-service contract + migration combined 13 SHOULD split Beyond 21 MUST split SPโDays (validation only): 1=0.5d/0.25d ยท 2=1d/0.35d ยท 3=2d/0.65d ยท 5=4d/1.0d ยท 8=6d/1.5d ยท 13=10d/2.0d (Trad/AI likely) AI speedup: SP 1โ2x ยท 2-3โ3x ยท 5-8โ4x ยท 13+โ5x. AI cost =
(code_gen ร 1.3) + (test_gen ร 1.3)(30% review overhead).MANDATORY frontmatter:
story_points: <n> complexity: low | medium | high | critical man_days_traditional: '<min>-<max>d' # range when likely โฅ3d; '<N>d' when <3d man_days_ai: '<min>-<max>d' risk_margin_pct: <n> # base + add-ons risk_factors: [touches-complex-existing-feature, regression-fan-out] # closed-list from add-ons; [] if none blast_radius: touched_areas: <n> complex_touched: <n> downstream_consumers: [list or count] shared_common_code: yes | no estimate_scope_included: [code, integration-tests, frontend, i18n, docs] estimate_scope_excluded: [unit-tests, e2e, perf, deployment, code-review-rounds] estimate_reasoning: | 5-7 lines covering: (a) UI tier โ row applied (b) Backend tier โ row applied (c) Test scope โ case breakdown by driver, file count, fixtures, tier row (d) Cost driver โ dominant tier + why (e) Blast radius โ touched, complex, regression scope (f) Risk factors โ list driving margin; why not larger/smaller Example: "UI: compose Form/Table/Dialog โ NEW screen (~1.5d). Backend: NEW command on existing aggregate, reuses validation+repo (~1d). Tests: 4 transitions ร 2 actors + 3 validation + 2 UI states = 13 cases, 1 new fixture โ tier 13-25 ~1.5d. Driver: UI composition + new states. Blast: 4 areas, 1 complex. Risk: base 35% + touches-complex +20% = 55% โ max 3.9d โ range 2.5-4d."Sanity self-check:
likely_days โฅ3dand single-point? โ reject, must be range- Margin <15% on
likely_days โฅ5d? โ under-estimated, widen- Margin >100%? โ STOP, split instead of buffer
- Complex existing feature touched, no regression budget in
(c)? โ reject- Blast
>5areas OR>2complex, no split discussion? โ reject- Purely additive on existing model AND existing UI? โ cap SP 3 unless tests >1.5d
- NEW UI surface (page/complex form/dashboard)? โ SP 5+ even if backend one endpoint
- Backend cross-service / migration / multi-aggregate? โ SP 8+ regardless of UI
bottom_up_hours / 6vs SP-Days disagreement >50%? โ trust bottom-up, downgrade SP- Without tests, SP drops โฅ1 bucket? โ tests dominate; state explicitly
- Reasoning called out UI vs backend vs blast vs risk factors? โ if missing, add
Red Flag Stop Conditions โ STOP and escalate to user via AskUserQuestion when:
- Confidence drops below 60% on any critical decision
- Changes would affect >20 files (blast radius too large)
- Cross-service boundary is being crossed
- Security-sensitive code (auth, crypto, PII handling)
- Breaking change detected (interface, API contract, DB schema)
- Test coverage would decrease after changes
- Approach requires technology/pattern not in the project
NEVER proceed past a red flag without explicit user approval.
file:line evidence for every claim. Confidence >80% to act, <60% = do NOT recommend.
man_days_traditional (ฮฃh/6 ร productivity_factor); SP DERIVED. UI cost usually dominates โ bump SP one bucket if NEW UI surface (page/complex form/dashboard). Frontmatter MUST include story_points, complexity, man_days_traditional, man_days_ai, estimate_scope_included, estimate_scope_excluded, estimate_reasoning (UI vs backend cost driver). Cap SP 3 for additive-on-existing-model+existing-UI unless test scope >1.5d. SP 13 SHOULD split, SP 21 MUST split.
MUST ATTENTION apply critical thinking โ every claim needs traced proof, confidence >80% to act. Anti-hallucination: never present guess as fact.
MUST ATTENTION apply AI mistake prevention โ holistic-first debugging, fix at responsible layer, surface ambiguity before coding, re-read files after compaction.
plans/reports/ incrementally and synthesize from disk.Reference docs read: ....lessons.md; project conventions override generic defaults.[N.M] $skill-name โ phase prefixes and one-in_progress discipline.TaskCreate BEFORE startingfile:line evidence for every claim (confidence >80% to act)[TASK-PLANNING] Before acting, analyze task scope and systematically break it into small todo tasks and sub-tasks using TaskCreate.