context-engineering SKILL.md skillA
context-engineering from addyosmani/agent-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add addyosmani/agent-skills/context-engineering@git:20261031.583df9aPins git:20261031.583df9a in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- addyosmani/agent-skills
- Path
skills/context-engineering/SKILL.md- Versions recorded
- 8
- Latest version
- git:20261031.583df9a, committed Oct 31, 2026
- First version recorded
- Aug 9, 2026
- Size
- 15,514 bytes
- Repository stars
- 112,362
- License
- MIT
Optimizes agent context setup. Use when starting a new session, when agent output quality degrades, when switching between tasks, or when you need to configure rules files and context for a project.
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 Engineering ## Overview Feed agents the right information at the right time. Context is the single biggest lever for agent output quality — too little and the agent hallucinates, too much and it loses focus. Context engineering is the practice of deliberately curating what the agent sees, when it sees it, and how it's structured. ## When to Use - Starting a new coding session - Agent output quality is declining (wrong patterns, hallucinated APIs, ignoring conventions) - Switching between different parts of a codebase - Setting up a new project for AI-assisted development - The agent is not following project conventions ## The Context Hierarchy Structure context from most persistent to most transient: ``` ┌─────────────────────────────────────┐ │ 1. Rules Files (CLAUDE.md, etc.) │ ← Always loaded, project-wide ├─────────────────────────────────────┤ │ 2. Spec / Architecture Docs │ ← Loaded per feature/session ├─────────────────────────────────────┤ │ 3. Relevant Source Files │ ← Loaded per task ├─────────────────────────────────────┤ │ 4. Error Output / Test Results │ ← Loaded per iteration ├─────────────────────────────────────┤ …
Read the whole file at its exact version.
How to install
mdr add addyosmani/agent-skills/context-engineering@sha256:5ee2929d3aded015The line at the top of this page pins the label git:20261031.583df9a, 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_544jhf74f34ouql6)
5 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 8 versions of this file, between Aug 9, 2026 and Oct 31, 2026, about one every 12 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261031.583df9a latest | 2026-10-31 | 583df9a | 15,514 B | A | view · diff |
| git:20261029.725c328 | 2026-10-29 | 725c328 | 15,511 B | A | view · diff |
| git:20261015.0004999 | 2026-10-15 | 0004999 | 15,489 B | A | view · diff |
| git:20260907.226bdd3 | 2026-09-07 | 226bdd3 | 15,486 B | A | view · diff |
| git:20260905.a1c9bd6 | 2026-09-05 | a1c9bd6 | 12,328 B | A | view · diff |
| git:20260809.cc48b69 | 2026-08-09 | cc48b69 | 14,228 B | A | view · diff |
| git:20260809.a1c8fa9 | 2026-08-09 | a1c8fa9 | 14,020 B | A | view · diff |
| git:20260809.cf0ba3f | 2026-08-09 | cf0ba3f | 14,186 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 (15514 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
addyosmani/agent-skills · 112,362 stars · license MIT · pushed 2026-10-31 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_544jhf74f34ouql6 GET https://markdownregistry.com/api/v1/resolve?ref=addyosmani/agent-skills/context-engineering GET https://markdownregistry.com/api/v1/blob/5ee2929d3aded01587aa24fc9907693c8820f87f807ea0c52a263af718b62d0b
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.
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