skill-drift

skill-drift is a command for Claude Code from jootsing-research/tapkit-plugins-claude. It costs 27 tokens per session (808 once invoked), scanned A, original, no licence file.

A read-only command that compares local Tapkit skills with skills in the upstream GitHub repository and reports differences. Upstream means the source repository from which the local copy is maintained.

In plain words
What is it for?
It is for checking skill drift between a local Tapkit installation and jootsing-research/skills.
Why use it?
It shows whether local skills have fallen out of sync with the repository version without changing them.

Command for Claude Code

Written for Claude Code: installed under .claude/.

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/jootsing-research/tapkit-plugins-claude/skill-drift
Clone the repo
git clone --depth 1 https://github.com/jootsing-research/tapkit-plugins-claude

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 skill-drift

README.md
[![agentmods](https://agentmods.dev/badge/commands/jootsing-research/tapkit-plugins-claude/skill-drift.svg)](https://agentmods.dev/commands/jootsing-research/tapkit-plugins-claude/skill-drift)
Your own site
<a href="https://agentmods.dev/commands/jootsing-research/tapkit-plugins-claude/skill-drift"><img src="https://agentmods.dev/badge/commands/jootsing-research/tapkit-plugins-claude/skill-drift.svg" alt="Measured on agentmods" height="20"></a>
Per session 27 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 808 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin unknown 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 $0.00027 $0.00808
Opus 5 $0.00014 $0.00404
Sonnet 5 $0.00005 $0.00162
Haiku 4.5 $0.00003 $0.00081

Measured 5d ago against content hash 903da99aaa6d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

skill-drift 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 5d 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/skill-drift.md · 50 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 5d ago First seen · 50 lines · 27 tokens per session scan A 903da99aaa6d

Subscribe to this mod's changes

skill-drift is a command published in the GitHub repository jootsing-research/tapkit-plugins-claude (3 stars, last pushed 1mo ago), with no licence file. It adds 27 tokens to every session and 808 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 2026-08-31.