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 product-on-purpose/agent-skills-toolkit --skill askit-build-output-stylegit clone --depth 1 https://github.com/product-on-purpose/agent-skills-toolkitWrote 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/product-on-purpose/agent-skills-toolkit/askit-build-output-style)<a href="https://agentmods.dev/skills/product-on-purpose/agent-skills-toolkit/askit-build-output-style"><img src="https://agentmods.dev/badge/skills/product-on-purpose/agent-skills-toolkit/askit-build-output-style/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/product-on-purpose/agent-skills-toolkit/askit-build-output-style"><img src="https://agentmods.dev/badge/skills/product-on-purpose/agent-skills-toolkit/askit-build-output-style.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 | $0.00053 | $0.00531 |
| Opus 5 | $0.00026 | $0.00266 |
| Sonnet 5 | $0.00011 | $0.00106 |
| Haiku 4.5 | $0.00005 | $0.00053 |
Grade A, and why
askit-build-output-style 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 11d 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
askit-build-output-style
Purpose
Author a Claude Code output style: a definition that changes how the agent formats and frames its responses (for example an explanatory or terse mode). Output styles are CLAUDE-ONLY - Codex and the wider agentskills.io ecosystem have no equivalent (Standard sec 2.3) - so this skill emits no Codex artifact and the authored component declares agent-targets: [claude]. Two modes: create scaffolds a new output style; improve refines an existing one. Authoring depth is in references/authoring-output-styles.md. Follows the shared builder contract (../../docs/reference/builder-pattern.md).
When to use
When the user asks to create, scaffold, write, or improve a Claude Code output style (a response mode or response-formatting definition).
create mode
- Brief interview: the style's purpose (when Claude should use it), the response shape it enforces (structure, tone, length), and any required elements. Skip if in context.
- Scaffold the output-style markdown (copy
templates/output-style.md): a name, a description of when it applies, and the response-formatting instructions. - Declare
agent-targets: [claude](Claude-only) and state the asymmetry plainly; do not emit a Codex artifact. - Register it in
library.jsoncomponents.outputStylesas{ name, version, tier, status }. - Evaluate (
node scripts/evaluate.mjs . --json).
improve mode
- Run evaluate and read findings.
- Tighten the description (when-to-use) and the formatting instructions; remove ambiguity about when the style applies and what it requires.
- Re-run to confirm.
Scope
Claude-only (sec 2.3). The build SKILL is portable, but the artifact it produces runs only on Claude Code; state this clearly rather than silently emitting nothing for other targets (the F-06 expectation-setting principle). Output styles are an Advanced, agent-specific capability.
What ships with it
3 files 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.
- 11d ago First seen · 32 lines · 53 tokens per session scan A a932a48f3161
askit-build-output-style is a skill published in the GitHub repository product-on-purpose/agent-skills-toolkit (2 stars, last pushed yesterday), licensed Apache-2.0. It adds 53 tokens to every session and 531 once invoked, about $0.0003 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 2026-08-31.
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