context-checkup SKILL.md skillA
context-checkup from eai-org/agent-toolkit is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add eai-org/agent-toolkit/context-checkup@v1.4Pins v1.4 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- eai-org/agent-toolkit
- Path
skills/context-checkup/SKILL.md- Versions recorded
- 7
- Latest version
- v1.4, committed Oct 22, 2026
- First version recorded
- Jun 6, 2026
- Size
- 7,601 bytes
- Repository stars
- 82
- License
- MIT
Audit what auto-loads into an agent session's context window and suggest lean, reversible fixes to cut startup tokens.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Context checkup Find what loads **automatically** into the session's context at startup, quantify it, and propose **reversible** trims ranked by payoff — shrink the startup context window by cutting what isn't worth its tokens. Read-only — measure and recommend; change settings only on explicit approval. ## Mental model (spend attention top-down) Cost hierarchy, biggest first: 1. **MCP tool schemas** — large, but **deferred** by tool search. Only a problem if tool search is OFF. 2. **Always-on text** — every always-on instruction file (entry-file chain, `@imports`, unscoped rules files) and **skill/agent/command descriptions**: every available one's description loads every session, except skills flagged non-model-invocable (their description never loads; a manual-only skill costs nothing until invoked). 3. **MCP server instructions** — load per enabled server at startup; a chatty preamble can dwarf its tool names. 4. **MCP tool names** — ~10 tokens each. Cheap; 30 names ≈ 300 tokens isn't worth a recommendation. Rules: **measure, never guess** — `wc`/count each source, convert with tokens ≈ words × 1.3 for …
Read the whole file at its exact version.
How to install
mdr add eai-org/agent-toolkit/context-checkup@sha256:257f3f061b45dcbcThe line at the top of this page pins the label v1.4, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_wxk7676xk2yfxwvv)
7 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 7 versions of this file, between Jun 6, 2026 and Oct 22, 2026, about one every 23 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.4 latest | 2026-10-22 | 2c245ca | 7,601 B | A | view · diff |
| v1.3 | 2026-10-21 | 3cfc19a | 6,333 B | A | view · diff |
| v1.2 | 2026-07-26 | 6cfa47d | 3,427 B | A | view · diff |
| v1.2 | 2026-07-20 | fa3badc | 3,454 B | A | view · diff |
| v1.1 | 2026-06-09 | c417dcc | 3,443 B | A | view · diff |
| v1.0 | 2026-06-06 | 103ef85 | 3,443 B | A | view · diff |
| git:20260606.894c2ea | 2026-06-06 | 894c2ea | 3,531 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (7601 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
eai-org/agent-toolkit · 82 stars · license MIT · pushed 2026-11-03 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_wxk7676xk2yfxwvv GET https://markdownregistry.com/api/v1/resolve?ref=eai-org/agent-toolkit/context-checkup GET https://markdownregistry.com/api/v1/blob/257f3f061b45dcbcf48fe7b47de664e5cf0d3dcd7eedf5029023f42c2c7e87a5
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.