bugfix

A command for investigating and fixing a reported software bug with xReview, a peer-review workflow for code changes.

In plain words
What is it for?
Use it when debugging a codebase: start a review session, investigate the reported problem, apply a fix if needed, and submit the result for review.
Why use it?
It provides a defined path for recording the work, checking whether the bug is real, and sending a fix for review.

Command

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 commands/tonychen15/xreview/bugfix
Clone the repo
git clone --depth 1 https://github.com/tonychen15/xReview
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 149 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 $0.00000 $0.00149
Opus 5 $0.00000 $0.00075
Sonnet 5 $0.00000 $0.00030
Haiku 4.5 $0.00000 $0.00015

Measured 2d ago against content hash 637c035ce9ee, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

bugfix 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 2d ago.

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.

claude/commands/bugfix.md · 16 lines

What it actually says

/bugfix — Fix a bug with xReview

IMPORTANT: You MUST run this shell command FIRST before doing anything else:

xreview claude bugfix "$ARGUMENTS"

Read the script's output carefully. It tells you the session number and what to append to .review/REVIEW.md.

Then follow these steps:

  1. Append the session header and "Implementing" line to .review/REVIEW.md (use the exact format from the script output)
  2. Investigate the bug described in the objective
  3. If you find a bug: fix it, then run xreview review
  4. If no bug exists: run xreview nobug to close the session
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. 2d ago First seen · 16 lines · 0 tokens per session scan A 637c035ce9ee

Subscribe to this mod's changes

bugfix is a command published in the GitHub repository tonychen15/xReview (2 stars, last pushed 2mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 149 tokens. 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 2026-08-31.