smith-bugfix

An autonomous workflow for fixing bugs and making small code changes. It runs from the initial request through implementation and a merged pull request, without a separate requirements or planning phase.

In plain words
What is it for?
Use it for small bug fixes or minor changes that do not need requirements gathering, detailed planning, or an interactive questions stage.
Why use it?
It reduces the coordination needed for straightforward fixes by handling the normal development steps automatically. It also records important events in a project session log when that log is available.

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/attckdigital/smith/smith-bugfix
Any agent
npx skills add ATTCKDigital/smith --skill smith-bugfix
Clone the repo
git clone --depth 1 https://github.com/ATTCKDigital/smith

Made for: Claude Code, Codex.

Per session 34 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,246 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 $0.00034 $0.05246
Opus 5 $0.00017 $0.02623
Sonnet 5 $0.00007 $0.01049
Haiku 4.5 $0.00003 $0.00525

Measured 2d ago against content hash 2b2615bede71, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

smith-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.

skills/smith-bugfix/SKILL.md · 444 lines

How it starts

The opening of the file, as written. The whole thing — 444 lines — stays where its author put it; the contents beside it link to each section on GitHub.

SpecKit Bugfix Workflow

A streamlined alternative to /smith-new for bugs, small changes, and trivial fixes that don't require requirements gathering, planning, or a questions gate. Runs fully autonomously from invocation to merged PR.

Arguments: $ARGUMENTS

Vault Logging

Throughout this action, log significant events to the vault session log. Read the session log path from .smith/vault/.current-session. If the file is missing or the vault is not initialized, skip all logging silently.

Append entries using this format:

### [HH:MM:SS] /smith-bugfix <event>

**User Request:**
> <verbatim user message that triggered this action — capture the exact words the user typed describing the bug or fix needed. For natural language triggers like "fix this", include the preceding context that describes what's broken.>

**Synthesized Input:** <brief summary of the fix being applied>
**Outcome:** <what happened>
**Artifacts:** <files created/modified>
**Systems affected:** <system IDs>

Log at these points:

  1. On invocation — capture the verbatim user request AND the synthesized bug description
  2. After branch created — branch name
  3. After fix applied — files modified, brief description of the fix
  4. After tests — pass/fail summary
  5. After specs updated — which specs were updated
  6. On completion — PR number, merge status, success/failure

Subagent Invocation Logging

Immediately before every Agent tool call in this workflow, append a block to the session log. The Agent tool's return value does not expose subagent_type or model to the parent, so this is the only place that information can be captured.

### [HH:MM:SS] Subagent invoked: <description>

**Type:** <subagent_type or "general">
**Model:** <model override passed to Agent, or "inherited" if none>

After the Agent tool returns, the subagent-vault-writeback.sh hook automatically appends a matching "Subagent completed" block with metrics read from the sidechain transcript — do not duplicate that logging in the skill.

Read the full file on GitHub · 444 lines

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 · 444 lines · 34 tokens per session scan A 2b2615bede71

Subscribe to this mod's changes

smith-bugfix is a skill published in the GitHub repository ATTCKDigital/smith (52 stars, last pushed 1mo ago), licensed MIT. It adds 34 tokens to every session and 5,246 once invoked, about $0.0002 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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