prompt-optimization SKILL.md skillA
prompt-optimization from fusengine/agents is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add fusengine/agents/prompt-optimization@git:20260729.3b91eedPins git:20260729.3b91eed in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- fusengine/agents
- Path
plugins/prompt-engineer/skills/prompt-optimization/SKILL.md- Versions recorded
- 5
- Latest version
- git:20260729.3b91eed, committed Jul 29, 2026
- First version recorded
- Jan 22, 2026
- Size
- 2,673 bytes
- Repository stars
- 36
- License
- MIT
Use when auditing an existing prompt for clarity, structure, or completeness issues, fixing vague instructions, or producing a before/after optimization report.
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
<objective> Prompt Optimization analyzes and improves an existing prompt through a 5-step workflow: analyze the current prompt, identify issues, apply corrections, validate the improvement, and document the changes. Its checklist covers four dimensions -- clarity (unambiguous instructions, precise vocabulary), structure (well-delimited sections, logical order), completeness (output format, error cases, examples), and guardrails (explicit limits, forbidden behaviors, security). It never changes the prompt's original meaning, adds unrequested features, removes existing guardrails, or lengthens the prompt without justification. See `common-problems.md` for before/after fix patterns and `improvement-techniques.md` for strengthening via CoT, few-shot, or guardrails. </objective> # Prompt Optimization Skill for analyzing and improving existing prompts. ## References - [common-problems.md](references/common-problems.md) - Load when: diagnosing a vague or ambiguous prompt — 5 before/after examples (vague instructions, missing context, undefined format, no error handling, weak emphasis) …
Read the whole file at its exact version.
How to install
mdr add fusengine/agents/prompt-optimization@sha256:db6448c3cc76068bThe line at the top of this page pins the label git:20260729.3b91eed, 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_374rug5rvko6qk6f)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Jan 22, 2026 and Jul 29, 2026, about one every 47 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260729.3b91eed latest | 2026-07-29 | 3b91eed | 2,673 B | A | view · diff |
| git:20260705.ba8ee52 | 2026-07-05 | ba8ee52 | 1,948 B | A | view · diff |
| git:20260705.8c2f9bc | 2026-07-05 | 8c2f9bc | 1,946 B | A | view · diff |
| git:20260124.acdc941 | 2026-01-24 | acdc941 | 3,846 B | A | view · diff |
| git:20260122.f6bc08c | 2026-01-22 | f6bc08c | 3,813 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 (2673 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
fusengine/agents · 36 stars · license MIT · pushed 2026-10-30 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_374rug5rvko6qk6f GET https://markdownregistry.com/api/v1/resolve?ref=fusengine/agents/prompt-optimization GET https://markdownregistry.com/api/v1/blob/db6448c3cc76068bce52b85f387da8902610964124df2765512f5332bfe32202
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.