OpenCode is an open-source AI coding agent that helps developers work on software projects. It includes agents for full-access development, read-only exploration and planning, plus a general subagent for complex searches and multistep tasks; the catalogue add-ons extend its workflows.
Borrowing it
Nothing to install: this file belongs to anomalyco/opencode. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/anomalyco/opencode/dev/.opencode/skills/sample-skill/SKILL.mdgit clone --depth 1 https://github.com/anomalyco/opencodeWrote 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.
[](https://agentmods.dev/skills/anomalyco/opencode/sample-skill)<a href="https://agentmods.dev/skills/anomalyco/opencode/sample-skill"><img src="https://agentmods.dev/badge/skills/anomalyco/opencode/sample-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.
<a href="https://agentmods.dev/skills/anomalyco/opencode/sample-skill"><img src="https://agentmods.dev/badge/skills/anomalyco/opencode/sample-skill.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00040 | $0.00265 |
| Opus 5.5 | $0.00016 | $0.00106 |
| Sonnet 5.5 | $0.00008 | $0.00053 |
| Haiku 4.5 | $0.00004 | $0.00026 |
Grade A, and why
sample-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 12d 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.
What it actually says
Sample Skill
This is a minimal project-local opencode skill. It exists as a reference for how a skill is structured and as a tiny reusable workflow the assistant can load when the user asks for a skill example.
When To Use
- Use when the user asks for a sample skill or skill template.
- Use when demonstrating the required
SKILL.mdfrontmatter and body format. - Do not use for unrelated coding tasks just because a skill exists.
Workflow
- Confirm the specific outcome the user wants if the request is ambiguous.
- Inspect the relevant files before changing anything.
- Make the smallest correct change.
- Verify the result with a focused read, typecheck, test, or other lightweight check when available.
- Summarize the changed files and any required restart or reload step.
Example Response Style
When this skill is relevant, keep responses direct and actionable:
I created a project-local skill at .opencode/skills/sample-skill/SKILL.md.
Restart opencode for the new skill to be discovered by future sessions.
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.
- 12d ago First seen · 32 lines · 40 tokens per session scan A 3b7caeedd352
sample-skill is a skill published in the GitHub repository anomalyco/opencode (220,205 stars, last pushed today), licensed MIT. It adds 40 tokens to every session and 265 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-10-11.
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