resonance-ops-skill-author

resonance-ops-skill-author is a skill for Claude Code from manusco/resonance. It costs 89 tokens per session (1,416 once invoked), scanned A, original, MIT.

A workflow for creating and checking reusable instructions for coding agents. It treats those instructions like software by testing the need, compiling the skill, validating its format, and adding evaluation cases.

In plain words
What is it for?
Building new agent skills, converting workflows into procedures, fixing skill descriptions or frontmatter, reducing oversized instruction files, adding evaluations, and running validators.
Why use it?
It helps turn repeated explanations or unreliable agent behavior into a documented, testable procedure. Validation and evaluations expose gaps before the skill is used in a project.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: mentions subagents; installed under .agents/ (shared by several agents); mentions AGENTS.md.

Part of the resonance plugin — 85 skills, 38 commands shipped together

Good fit Building new agent skills, converting workflows into procedures, fixing skill descriptions or frontmatter, reducing oversized instruction files, adding evaluations, and running validators.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/manusco/resonance/resonance-skill-author
Install

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.

Any agent
npx skills add manusco/resonance --skill resonance-skill-author
Clone the repo
git clone --depth 1 https://github.com/manusco/resonance

Made for: Claude Code.

Or install resonance, the plugin that ships this one along with the rest of its 85 skills, 38 commands.

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.

agentmods badge for resonance-ops-skill-author

README.md
[![agentmods](https://agentmods.dev/badge/skills/manusco/resonance/resonance-skill-author/github.svg)](https://agentmods.dev/skills/manusco/resonance/resonance-skill-author)
Your own site
<a href="https://agentmods.dev/skills/manusco/resonance/resonance-skill-author"><img src="https://agentmods.dev/badge/skills/manusco/resonance/resonance-skill-author/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.

agentmods 80×15 button for resonance-ops-skill-author

Your own site · 80×15
<a href="https://agentmods.dev/skills/manusco/resonance/resonance-skill-author"><img src="https://agentmods.dev/badge/skills/manusco/resonance/resonance-skill-author.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 89 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,416 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00089 $0.01416
Opus 5 $0.00044 $0.00708
Sonnet 5 $0.00018 $0.00283
Haiku 4.5 $0.00009 $0.00142

Measured 10d ago against content hash cd9bee57c219, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

resonance-ops-skill-author 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 10d 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.

.agents/skills/ops/skill-author/resonance-skill-author/SKILL.md · 65 lines

How it starts

The opening of the file, as written. The whole thing — 65 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/resonance-ops-skill-author: forge a skill to the gold standard

Role: the meta-skill. It builds the other skills. Input: a capability gap, a task the agent does poorly or re-explains every time. Output: a skill template in .forge/skills/<name>/, compiled to SKILL.md, with >= 3 evals, passing the validator. Definition of Done: python .forge/validate_skill.py <out> is clean, >= 3 eval cases exist, and the skill closes a gap proven by a baseline run.

You do not write prose and hope. You build the way you would build software: prove the gap, write the minimum, validate, eval, commit atomically. A skill that ships unmeasured is a liability, not an asset.

Prerequisites (fail fast)

  • You can name the gap in one sentence and give a concrete example task. If you cannot, stop and ask the user for one.
  • You know the archetype (see step 2). If the request is "make X better," first decide whether X is knowledge, procedure, or orchestration.

Algorithm

Copy this checklist and tick items as you go.

  1. Prove the gap (eval-first). Run the target task without a skill. Record where the model fails or what you keep re-explaining. This is the baseline. No gap, no skill. → verify: you have a written baseline failure.
  2. Choose the archetype. → verify: one of:
    • knowledge: a domain expert applied inline (copywriter, architect). Auto-loaded.
    • procedure: a gated, multi-step job with a Definition of Done (build, ship). Invoked as /name; mark manual-only if it has side effects.
    • orchestration: a procedure that drives other skills/subagents (audit swarm, review pipeline). See skill_spec.md for the contract each one must satisfy.
  3. Write the golden evals first. Create >= 3 cases in evals/ (query + expected_behavior rubric). Cover the happy path, an edge case, and a failure the skill must prevent. See eval_protocol.md. → verify: 3 files in evals/.
  4. Write the minimum skill. Start from the matching template in .forge/templates/. Add only what the model does not already know (see degrees_of_freedom.md). Nail the description first, it is what makes the skill trigger (see description_patterns.md). Push fragile, deterministic steps into scripts/, not prose (see script_authoring.md). → verify: body is lean, references one level deep.
  5. Compile. python .forge/forge.py build <name> (add --host all to emit every tool, --model <m> to target a model). The Forge injects shared sections (voice, decisions, completion) so you never hand-copy them. → verify: output written.
  6. Validate (the gate). python .forge/validate_skill.py <output-path>. Fix every ERROR and every warning you can before continuing. This is your Definition of Done check. → verify: validator clean.
  7. Eval. Run the skill against the golden cases (with vs. without). It must beat the baseline from step 1. → verify: measured improvement.
  8. Commit atomically (the Iron Contract). Only after validate + eval pass, write the skill into place and tell the user what landed. If anything failed, discard and report; there is no "almost shipped" state.
  9. Iterate (Claude A / Claude B). Author with this instance; test with a fresh one on real tasks. Bring its failures back as edits to the template, never to the generated output. Regenerate.

Read the full file on GitHub · 65 lines

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.

  1. 10d ago First seen · 65 lines · 89 tokens per session scan A cd9bee57c219

Subscribe to this mod's changes

resonance-ops-skill-author is a skill published in the GitHub repository manusco/resonance (37 stars, last pushed 6d ago), licensed MIT. It adds 89 tokens to every session and 1,416 once invoked, about $0.0004 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 2026-08-30.

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