drift-update

drift-update is a skill for Claude Code from wardawgmalvicious/agent-config. It costs 174 tokens per session (6,763 once invoked), scanned A, original, MIT.

A workflow for applying drift-handoff briefs, which are written instructions for fixing differences found during a codebase audit.

In plain words
What is it for?
Use it to read every brief, apply its specified edits, run its verification steps, and mark the brief complete.
Why use it?
It keeps fixes tied to the audit record, checks that each fix works, and records when the work is done.

Skill for Claude Code

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

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is uv run scripts/audit-status.py --dir <the resolved directory>.

Good fit Use it to read every brief, apply its specified edits, run its verification steps, and mark the brief complete.

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Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/wardawgmalvicious/agent-config
agentmods
npx agentmods add skills/wardawgmalvicious/agent-config/drift-update

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 drift-update

README.md
[![agentmods](https://agentmods.dev/badge/skills/wardawgmalvicious/agent-config/drift-update/github.svg)](https://agentmods.dev/skills/wardawgmalvicious/agent-config/drift-update)
Your own site
<a href="https://agentmods.dev/skills/wardawgmalvicious/agent-config/drift-update"><img src="https://agentmods.dev/badge/skills/wardawgmalvicious/agent-config/drift-update/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for drift-update

Your own site · 80×15
<a href="https://agentmods.dev/skills/wardawgmalvicious/agent-config/drift-update"><img src="https://agentmods.dev/badge/skills/wardawgmalvicious/agent-config/drift-update.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 174 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 6,763 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 $0.00174 $0.06763
Opus 5.5 $0.00070 $0.02705
Sonnet 5.5 $0.00035 $0.01353
Haiku 4.5 $0.00017 $0.00676

Measured 6d ago against content hash 2a6362608255, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

drift-update 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 6d 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/skills/drift-update/SKILL.md · 475 lines

How it starts

The opening of the file, as written. The whole thing — 475 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Drift update

Execute the briefs on disk. /drift-audit finds the drift, /drift-handoff writes it down, and this skill is the third turn: it applies what the briefs specify, verifies with the steps the briefs supply, and records that it ran.

The briefs are the instruction set. This skill contributes the loop around them — resolution, a staleness gate, triage, checkpointing, and a stamp — not the content of any edit.

Read every brief from disk, every time. Never reconstruct one from the conversation, from memory of an audit, or from a summary, even when this session produced it. The file is the contract; the transcript is not.

Paths below are relative to the repo root. This skill is project scope — it lives in .claude/skills/, deployed nowhere since 2026-09-09 — so it only fires in sessions inside this repo.

1. Preconditions and session posture

Fresh session is the intended way to run this. A brief is written to be read cold; running cold is what proves it was written well.

Check whether /drift-audit or /drift-handoff ran in this session. If either did, this is a warm run. A report that is merely present does not count: an @-mention or a path argument loads 00-audit-report.md with its ## Audit window and ## Recommended actions intact, but none of the audit turn's context the limits below exist for. Runs on 2026-09-08 and 2026-09-11 both met this and stamped themselves fresh. Warm is allowed, with two limits:

  • Refuse a brief whose targets include .claude/skills/drift-audit/, .claude/skills/drift-handoff/, or .claude/skills/drift-update/. Editing the skill that produced the briefs, in the session that produced them, is the one case where warm is actually unsound. Name the brief, say why it was skipped, and tell the user to run it from a fresh session.
  • Cap the run at three briefs. The audit turn is the expensive one; its fetched sources and artifact sweep are still resident. Apply the first three eligible briefs, stop, and report the remainder as pending a fresh session. The cap counts briefs this run applies; one that 4.2 stamps as already-applied costs a grep and an append, so it does not consume the budget. Compaction part-way through an edit is worse than a restart, because a compacted session is a lossy warm one — strictly worse than a cold one.

Read the full file on GitHub · 475 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. 6d ago Changed 2a6362608255
  2. 8d ago Changed 734a6dca21d1
  3. 10d ago Changed · +17 lines e9c0ceaef073
  4. 15d ago Changed 02a7e5176660
  5. 17d ago Changed · +21 lines 8e3e254f3c07
  6. 18d ago Changed · +21 lines 2170e4dceb6e
  7. 23d ago Changed · +34 lines f505d9267781
  8. 24d ago Changed · +37 lines · -32 tokens per session 554265f9c08b
  9. 1mo ago Changed · +25 lines 19c7c2f131e8
  10. 1mo ago First seen · 320 lines · 206 tokens per session scan A 331389685329

Subscribe to this mod's changes

drift-update is a skill published in the GitHub repository wardawgmalvicious/agent-config (1 stars, last pushed 7d ago), licensed MIT. It adds 174 tokens to every session and 6,763 once invoked, about $0.0007 per session on Opus 5.5. 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 2026-08-31.

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