dustoff

dustoff is a skill for Claude Code from joshukraine/dotfiles. It costs 64 tokens per session (2,985 once invoked), scanned A, original, MIT.

A read-only assessment for a software project that has been inactive for months. It checks what may be outdated or broken and creates a prioritised plan for returning to development.

In plain words
What is it for?
Use it before resuming work on a dormant project. It can review the project’s lifecycle, stale tooling, broken tests, and dependency status, then hand each recommended fix to the appropriate skill or manual step.
Why use it?
Dependencies, tests, tools, and project conventions can drift during a long pause. This assessment shows what needs attention first without changing the codebase.

Skill for Claude Code

Written for Claude Code: disable-model-invocation in frontmatter. Also seen: reads .claude/ paths; mentions CLAUDE.md.

Good fit Use it before resuming work on a dormant project. It can review the project’s lifecycle, stale tooling, broken tests, and dependency status, then hand each recommended fix to the appropriate skill or manual step.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/joshukraine/dotfiles/dustoff
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.

Any agent
npx skills add joshukraine/dotfiles --skill dustoff
Clone the repo
git clone --depth 1 https://github.com/joshukraine/dotfiles

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for dustoff

README.md
[![agentmods](https://agentmods.dev/badge/skills/joshukraine/dotfiles/dustoff.svg)](https://agentmods.dev/skills/joshukraine/dotfiles/dustoff)
Your own site
<a href="https://agentmods.dev/skills/joshukraine/dotfiles/dustoff"><img src="https://agentmods.dev/badge/skills/joshukraine/dotfiles/dustoff.svg" alt="Measured on agentmods" height="20"></a>
Per session 64 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,985 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00064 $0.02985
Opus 5 $0.00032 $0.01492
Sonnet 5 $0.00013 $0.00597
Haiku 4.5 $0.00006 $0.00298

Measured 7d ago against content hash 78768e332b4a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

dustoff 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 7d 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/.claude/skills/dustoff/SKILL.md · 117 lines

How it starts

The opening of the file, as written. The whole thing — 117 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Dust Off

Take stock of a project that's been sitting untouched for months and produce a single, prioritized re-entry plan for getting it back into active development. Dependencies have fallen behind, tests may be broken, and the project's adopted conventions have probably drifted from the current ~/.claude toolset. This skill assesses all of that and tells you, in priority order, what to do first — but it does not do the work itself.

It is read-only with respect to the codebase, and advisory. It inspects, reports, and recommends; it never updates dependencies, edits project files, marks ROADMAP checkboxes, or writes code. Its one deliberate write is optional and opt-in: capturing the finished plan as a tracking issue (or a DUSTOFF.md) so it survives the session — see step 5. The deliverable is a plan, and every item on that plan names the existing skill (or manual step) that acts on it.

Where it sits in the workflow. This is the first thing you run when returning to a dormant project — before picking up an issue, before /plan-phase, before any new work. Its output feeds the normal cycle: a clean assessment hands off to /update-deps, /readme-refresh, /plan-phase, and /resolve-issue to actually execute the catch-up.

Applicability. Works in any repo. It reads both the project (the working directory) and the current conventions under ~/.claude to measure drift between them. It degrades gracefully — no PRD, no README, no CI, or no gh are all handled, with the relevant phase noting what it couldn't check rather than failing.

Not the same as:

  • /checkpoint — that's mid-stream orientation: a 2-minute hallway update that assumes you already know where you are in an active push. This is the sit-down re-entry assessment for when you don't — you've been away for months and need to re-derive the project's state, staleness, and lifecycle stage from scratch.
  • /update-deps, /readme-refresh, /plan-phase — those do the work (update dependencies, fix the README, create issues). This one only flags the need and hands off. Delegate; don't duplicate.
  • /drift-check — that checks a branch diff against the project spec before a PR. This checks the whole project's adopted tooling and conventions against the current ~/.claude standard at re-entry. Different drift, different scope.

Read the full file on GitHub · 117 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. 7d ago First seen · 117 lines · 64 tokens per session scan A 78768e332b4a

Subscribe to this mod's changes

dustoff is a skill published in the GitHub repository joshukraine/dotfiles (422 stars, last pushed 25d ago), licensed MIT. It adds 64 tokens to every session and 2,985 once invoked, about $0.0003 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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