What is optimize-skill?

A command for reviewing and improving an agent skill's instructions. It checks how clearly the skill is triggered, how much text it uses, and whether its outputs work as intended.

Use it to optimize a named skill, apply focused instruction edits, move supporting material into references, and report remaining evaluation gaps.

It helps find unclear or wasteful instructions that may cause an agent to use a skill at the wrong time or misunderstand its task.

How rhyanvargas/agentic-development-starter-kit configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to rhyanvargas/agentic-development-starter-kit. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/rhyanvargas/agentic-development-starter-kit/main/.cursor/commands/optimize-skill.md

Clone the repo

git clone --depth 1 https://github.com/rhyanvargas/agentic-development-starter-kit

Made for: Claude Code, Cursor.

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.

README.md

[![agentmods](https://agentmods.dev/badge/commands/rhyanvargas/agentic-development-starter-kit/optimize-skill/github.svg)](https://agentmods.dev/commands/rhyanvargas/agentic-development-starter-kit/optimize-skill)

Your own site

<a href="https://agentmods.dev/commands/rhyanvargas/agentic-development-starter-kit/optimize-skill"><img src="https://agentmods.dev/badge/commands/rhyanvargas/agentic-development-starter-kit/optimize-skill/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/commands/rhyanvargas/agentic-development-starter-kit/optimize-skill"><img src="https://agentmods.dev/badge/commands/rhyanvargas/agentic-development-starter-kit/optimize-skill.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 208 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original 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.

Model	Per session	Once invoked
Fable 5.1	$0.00000	$0.00208
Opus 5.5	$0.00000	$0.00083
Sonnet 5.5	$0.00000	$0.00042
Haiku 4.5	$0.00000	$0.00021

Measured 2mo ago against content hash 491587189df8, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

optimize-skill 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 2mo 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.

.cursor/commands/optimize-skill.md · 23 lines

What it actually says

/optimize-skill

Optimize an Agent Skill for trigger accuracy, clarity, and token cost.

Skill

Read and follow skills/skill-optimizer (or .agents/skills/skill-optimizer in adopter apps).

Usage

/optimize-skill
/optimize-skill skills/spec-driven-workflow
/optimize-skill .agents/skills/my-company-skill

Behavior

Locate the target skill directory (ask if unclear).
Run the skill-optimizer gates (validate, description, lean body, progressive disclosure, trigger + output evals).
Apply lean edits; move kit-meta/rationale into references/ with hard when-to-load conditions.
Report what changed and any remaining eval gaps. For a full with/without output pass, hand off to /run-skill-evals (that command must end with Recommended next actions from skill-optimizer → references/eval-loop.md).

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.

2mo ago First seen · 23 lines · 0 tokens per session scan A 491587189df8

Subscribe to this mod's changes

optimize-skill is a command published in the GitHub repository rhyanvargas/agentic-development-starter-kit (2 stars, last pushed 4d ago), licensed Apache-2.0. It costs nothing until one of its globs matches a file; then it loads 208 tokens. 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.

Building agents

optimize-skill next to 6 commands from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
optimize-skillrhyanvargas/agentic-development-starter-kit	Command	2	4d ago	Apache-2.0	A	0	Claude Code, Cursor
checklistgithub/spec-kit	Command	148k	yesterday	MIT	A	13	Claude Code
clarifygithub/spec-kit	Command	148k	yesterday	MIT	A	27	Claude Code
specifygithub/spec-kit	Command	148k	yesterday	MIT	A	13	Claude Code
analyzegithub/spec-kit	Command	148k	yesterday	MIT	A	26	Claude Code
convergegithub/spec-kit	Command	148k	yesterday	MIT	A	35	Claude Code
implementgithub/spec-kit	Command	148k	yesterday	MIT	A	14	Claude Code

agentic-development-starter-kit: Command for Claude Code