common-context-optimization SKILL.md skillA
common-context-optimization from hoangnguyen0403/agent-skills-standard is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add hoangnguyen0403/agent-skills-standard/common-context-optimization@git:20261007.664a205Pins git:20261007.664a205 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- hoangnguyen0403/agent-skills-standard
- Path
.codex/skills/common/common-context-optimization/SKILL.md- Versions recorded
- 5
- Latest version
- git:20261007.664a205, committed Oct 7, 2026
- First version recorded
- May 13, 2026
- Size
- 1,992 bytes
- Repository stars
- 583
- License
- MIT
Manage context and prompt-cache costs without losing task state. Use for context management, orchestration cost, token budgets, large tool outputs, cache misses, or long-running conversations.
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
## **Priority: P1 (HIGH)** ## Workflow 1. **Inspect** host capabilities; do not assume agents can rewrite history, prompts, or memory. 2. **Project outputs** after consuming them: retain decisions, evidence, errors, and required values; point to complete logs/artifacts by stable reference. 3. **Bound context** at host-supported boundaries. Carry goal, active slice, authority, decisions, blockers, evidence links, and next action; preserve a stable append-only prefix where supported. 4. **Compact** only when useful and supported. Keep required details retrievable; never discard source evidence or rely on a fixed turn/token threshold. 5. **Measure** cache reads, replayed input, and total actor cost across the whole task. Separate observed usage from estimates; no invoice, savings, or efficacy claims without evidence. ## Anti-Patterns - **No history rewrite assumption**: Project outputs or create artifact references; use only host-supported controls. - **No fixed threshold**: Compact from observed context pressure and task needs, not a universal turn/token count. - **No evidence deletion**: Keep stable references to source outputs, decisions, and verification. …
Read the whole file at its exact version.
How to install
mdr add hoangnguyen0403/agent-skills-standard/common-context-optimization@sha256:e0756d93889715bbThe line at the top of this page pins the label git:20261007.664a205, 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_qa6qcvh4sqwawcvx)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between May 13, 2026 and Oct 7, 2026, about one every 37 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261007.664a205 latest | 2026-10-07 | 664a205 | 1,992 B | A | view · diff |
| git:20261007.30cb771 | 2026-10-07 | 30cb771 | 2,847 B | A | view · diff |
| git:20260714.6bf9b5e | 2026-07-14 | 6bf9b5e | 2,287 B | A | view · diff |
| git:20260627.0588377 | 2026-06-27 | 0588377 | 2,295 B | A | view · diff |
| git:20260513.7eab4bf | 2026-05-13 | 7eab4bf | 2,288 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 (1992 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
hoangnguyen0403/agent-skills-standard · 583 stars · license MIT · pushed 2026-11-07 · branch develop
API
GET https://markdownregistry.com/api/v1/artifacts/art_qa6qcvh4sqwawcvx GET https://markdownregistry.com/api/v1/resolve?ref=hoangnguyen0403/agent-skills-standard/common-context-optimization GET https://markdownregistry.com/api/v1/blob/e0756d93889715bb5443c6917f4dc1ac44d91a818cd28c6c04d6cd77521ff258
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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