Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add ZaxbyHub/opencode-swarm --skill skill-edit-validationgit clone --depth 1 https://github.com/ZaxbyHub/opencode-swarmWrote 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/zaxbyhub/opencode-swarm/skill-edit-validation)<a href="https://agentmods.dev/skills/zaxbyhub/opencode-swarm/skill-edit-validation"><img src="https://agentmods.dev/badge/skills/zaxbyhub/opencode-swarm/skill-edit-validation.svg" alt="Measured on agentmods" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00412 |
| Opus 5 | $0.00020 | $0.00206 |
| Sonnet 5 | $0.00008 | $0.00082 |
| Haiku 4.5 | $0.00004 | $0.00041 |
Grade A, and why
skill-edit-validation 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 4d 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
Skill Edit Validation
Trigger
After editing ANY .md file under .opencode/skills/, .claude/skills/, or .agents/skills/ that changes content wording (not just whitespace/formatting).
Protocol
- Extract changed phrases: Identify old wording vs new wording (e.g., "spec.md does NOT exist" changed to "NO effective spec exists")
- Targeted sweep: For each OLD phrase, grep test files:
Focus on:rg "<old-phrase>" tests/ src/ --type ts -l*-audit*,*-security*,*-spec-gate*,*skill-mirror*,*soft-spec*,*prompt*,*workflow* - For each match: Read the assertion context (surrounding 10 lines). Verify:
- Does the assertion still hold against the new content?
- Is it checking a substring containing the old phrase?
- Is it checking for the ABSENCE of a word the new wording introduces? (e.g.,
not.toContain('skip')catches "this check is skipped")
- Update stale assertions in the same changeset. Do NOT defer to CI.
- Preserve behavioral intent: When updating, preserve what the assertion TESTS (e.g., "the plan skill has a spec-absent branch"), not just the string match.
Constraint
Do NOT rubber-stamp brittle assertions. If an assertion tests implementation detail rather than behavioral intent, flag it for refactoring to a semantic check.
Root cause
A skill-content test registry would auto-adjust (issue #1746 item 3). This playbook is the manual safety net.
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 4d ago First seen · 30 lines · 40 tokens per session scan A ad3900b03fff
skill-edit-validation is a skill published in the GitHub repository ZaxbyHub/opencode-swarm (463 stars, last pushed yesterday), licensed MIT. It adds 40 tokens to every session and 412 once invoked, about $0.0002 per session on Opus 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 2026-09-03.
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