bugfix

A command for fixing P1 or P2 software issues through test-driven development, or TDD: write a failing test, fix the code, then improve it.

In plain words
What is it for?
Reading an issue, creating a fix branch, writing regression tests, implementing and refactoring the fix, running checks, merging, and pushing the result.
Why use it?
It provides a repeatable bug-fix process with quality checks, issue updates, and branch integration through Git.

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/fall-out-bug/sdp/bugfix
Clone the repo
git clone --depth 1 https://github.com/fall-out-bug/sdp
Per session 17 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 289 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 $0.00017 $0.00289
Opus 5 $0.00009 $0.00144
Sonnet 5 $0.00003 $0.00058
Haiku 4.5 $0.00002 $0.00029

Measured yesterday against content hash fb871000c7d8, 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 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.

prompts/commands/bugfix.md · 39 lines

What it actually says

/bugfix — Quality Bug Fixes

When calling /bugfix issue NNN:

  1. Read issue — Load docs/issues/{NNN}-*.md
  2. Create branchgit checkout -b bugfix/{NNN}-{slug} from master
  3. TDD cycle — Write failing test → implement fix → refactor
  4. Quality gates — run quality gates (see AGENTS.md)
  5. Commitfix(scope): description (issue NNN)
  6. Mark issue closed — Update status in issue file
  7. MERGE AND PUSH — Execute yourself, not instructions!

CRITICAL: You MUST Complete

git checkout master
git merge bugfix/{branch} --no-edit
git push
git status  # MUST show "up to date with origin"

Work is NOT complete until git push succeeds.

Quick Reference

Input: P1/P2 issue
Output: Bug fixed + tests + pushed to origin

Aspect Hotfix Bugfix
Severity P0 P1/P2
Branch from master master
Testing Fast Full
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 · 39 lines · 17 tokens per session scan A fb871000c7d8

Subscribe to this mod's changes

bugfix is a command published in the GitHub repository fall-out-bug/sdp (19 stars, last pushed 2mo ago), licensed MIT. It adds 17 tokens to every session and 289 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.