Träd: @growi/cor

name: kiro-debug description: Investigate implementation failures using root-cause-first debugging. Use when an implementer is blocked, verification fails, or repeated remediation does not converge. allowed-tools: Read, Bash, Grep, Glob, WebSearch, WebFetch

argument-hint:

kiro-debug

Overview

This skill is for fresh-context root cause investigation. It combines local evidence, runtime/config inspection, and external documentation or issue research when available. It is not a patch generator for guess-first debugging.

When to Use

Implementer reports BLOCKED
Reviewer rejection repeats after remediation
Validation fails unexpectedly
A task appears to conflict with runtime or platform reality
The same failure survives more than one attempted fix

Do not use this skill to speculate about fixes before gathering evidence.

Inputs

Provide:

Exact failure symptom or blocker statement
Error messages, stack trace, and failing command output
Current git diff or summary of uncommitted failed changes
Task brief: what was being built
Reviewer feedback, if the failure came from review rejection
Relevant spec file paths (requirements.md, design.md)
Relevant requirement/design section numbers
Relevant ## Implementation Notes
Runtime or environment constraints already known

Outputs

Return:

ROOT_CAUSE
CATEGORY
FIX_PLAN
VERIFICATION
NEXT_ACTION: RETRY_TASK | BLOCK_TASK | STOP_FOR_HUMAN
CONFIDENCE: HIGH | MEDIUM | LOW
NOTES

Use the language specified in spec.json.

Method

1. Read the Error Carefully

Extract:

Exact error text
Stack trace or failure location
The command that produced the failure
Whether the failure is deterministic or intermittent

2. Inspect Local Runtime and Repository State

Inspect the repository for local evidence:

package.json, pyproject.toml, go.mod, Makefile, README*
Build config
tsconfig or equivalent language/runtime config
Runtime-specific config
Dependency versions and scripts
Relevant changed files from git diff

3. Search the Web if Available

If web access is available, search:

The exact error message
The technology + symptom combination
Official documentation
Version-specific issue trackers or migration notes

Prefer:

Official docs
Official repos/issues
Version-specific references
Runtime-specific documentation

4. Classify the Root Cause

Use one category:

MISSING_DEPENDENCY
RUNTIME_MISMATCH
MODULE_FORMAT
NATIVE_ABI
CONFIG_GAP
LOGIC_ERROR
TASK_ORDERING_PROBLEM
TASK_DECOMPOSITION_PROBLEM
SPEC_CONFLICT
EXTERNAL_DEPENDENCY

5. Determine the Smallest Safe Next Action

Decide whether the issue can be fixed inside this repo by:

Editing files
Adjusting configuration
Adding or correcting dependencies
Restructuring code

Use NEXT_ACTION: RETRY_TASK when the issue is repo-fixable inside the current approved task plan.

6. Determine Whether the Task Plan Is Still Valid

Decide whether the current approved task plan is still safe to execute as written.

Prefer NEXT_ACTION: STOP_FOR_HUMAN when:

A missing prerequisite task should exist before this one
The current task is ordered incorrectly relative to unfinished work
The current task boundary is wrong and should be split or merged
The task is too large or ambiguous to fix safely inside the current implementation loop

Use NEXT_ACTION: BLOCK_TASK only when the current task should stop but the rest of the queue can still proceed safely.

Do not propose a brute-force code fix as a substitute for revising tasks.md or the approved plan.

Critical Rule

Do not propose a multi-fix shotgun plan. Identify the root cause first, then produce the smallest plausible fix plan. If the true problem is a spec conflict or architecture problem, say so directly.

Stop / Escalate

Use NEXT_ACTION: STOP_FOR_HUMAN when the blocker genuinely requires:

Human product/requirements decision
External credentials or inaccessible services
Hardware or unavailable external systems
Re-scoping due to spec/platform conflict

If the issue is fixable by repo changes inside the current task plan, do not escalate prematurely.

Common Rationalizations

Rationalization	Reality
“This probably just needs a quick patch”	Patch-first debugging creates rework.
“Let’s try a few fixes”	Multi-fix guessing hides root cause.
“The spec is probably wrong, I’ll adapt it”	Spec conflicts must be surfaced explicitly.
“The docs search is optional”	For runtime/dependency issues, docs and version issues often contain the shortest path to root cause.

Output Format

## Debug Report
- ROOT_CAUSE: <1-2 sentence root cause>
- CATEGORY: MISSING_DEPENDENCY | RUNTIME_MISMATCH | MODULE_FORMAT | NATIVE_ABI | CONFIG_GAP | LOGIC_ERROR | TASK_ORDERING_PROBLEM | TASK_DECOMPOSITION_PROBLEM | SPEC_CONFLICT | EXTERNAL_DEPENDENCY
- FIX_PLAN:
  1. <specific repo-fixable action>
  2. <specific repo-fixable action>
- VERIFICATION: <command(s) to confirm the fix>
- NEXT_ACTION: RETRY_TASK | BLOCK_TASK | STOP_FOR_HUMAN
- CONFIDENCE: HIGH | MEDIUM | LOW
- NOTES: <context the next implementer should know>

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