debug-issue

A systematic debugging guide that uses a code knowledge graph to trace how a suspected problem moves through the program.

In plain words
What is it for?
It is for finding related code, tracing callers and called functions, following execution paths, checking recent changes, and seeing which other files may be affected.
Why use it?
It helps narrow a bug to the code path that triggers it and checks whether a recent change may have caused it.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/tirth8205/code-review-graph/debug-issue
Any agent
npx skills add tirth8205/code-review-graph --skill debug-issue
Clone the repo
git clone --depth 1 https://github.com/tirth8205/code-review-graph

Made for: Claude Code, Codex.

Per session 13 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 272 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00013 $0.00272
Opus 5 $0.00006 $0.00136
Sonnet 5 $0.00003 $0.00054
Haiku 4.5 $0.00001 $0.00027

Measured yesterday against content hash 68dd9bd6810e, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

debug-issue scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/debug-issue/SKILL.md · 29 lines

What it actually says

Debug Issue

Use the knowledge graph to systematically trace and debug issues.

Steps

  1. Use semantic_search_nodes_tool to find code related to the issue.
  2. Use query_graph_tool with callers_of and callees_of to trace call chains.
  3. Use get_flow_tool to see full execution paths through suspected areas.
  4. Run detect_changes_tool to check if recent changes caused the issue.
  5. Use get_impact_radius_tool on suspected files to see what else is affected.

Tips

  • Check both callers and callees to understand the full context.
  • Look at affected flows to find the entry point that triggers the bug.
  • Recent changes are the most common source of new issues.

Token Efficiency Rules

  • Start with get_minimal_context_tool(task="<your task>") before other graph tools.
  • Use detail_level="minimal" on all calls. Only escalate to "standard" when minimal is insufficient.
  • Target: complete any review/debug/refactor task in ≤5 tool calls and ≤800 total output tokens.
  • Read the implementation and its tests before changing code. The graph narrows scope; it does not replace the source.
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. yesterday First seen · 29 lines · 13 tokens per session scan A 68dd9bd6810e

Subscribe to this mod's changes

debug-issue is a skill published in the GitHub repository tirth8205/code-review-graph (31,016 stars, last pushed 5d ago), licensed MIT. It adds 13 tokens to every session and 272 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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