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-settingsgit 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-settings)<a href="https://agentmods.dev/skills/product-on-purpose/agent-skills-toolkit/askit-build-settings"><img src="https://agentmods.dev/badge/skills/product-on-purpose/agent-skills-toolkit/askit-build-settings/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-settings"><img src="https://agentmods.dev/badge/skills/product-on-purpose/agent-skills-toolkit/askit-build-settings.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 | $0.00045 | $0.00498 |
| Opus 5 | $0.00023 | $0.00249 |
| Sonnet 5 | $0.00009 | $0.00100 |
| Haiku 4.5 | $0.00005 | $0.00050 |
Grade A, and why
askit-build-settings 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.
What it actually says
askit-build-settings
Purpose
Author and improve a plugin's settings and permissions, following the builder pattern (../../docs/reference/builder-pattern.md). create scaffolds the settings per target (Claude Code settings.json - permissions, env, hook registration; Codex config.toml for the subset it supports); improve tightens an existing one. It also folds in permission advice: recommend the least-privilege allowlist a plugin needs, never broader (Standard sec 9). Recipe and the permission rubric are in references/settings-recipe.md.
When to use
When authoring settings, scoping permissions, wiring environment variables, or registering hooks in settings.
create mode
- Read what the plugin actually needs (which tools, which paths, which env, which hooks).
- Scaffold the settings per target: Claude Code
settings.json(apermissionsallow/deny set,env, andhooksregistration); Codexconfig.tomlfor the subset it supports. - Apply least privilege: the allowlist grants only what a component uses; secrets go through
envindirection, never committed (sec 9).
improve mode
- Read the current settings and the components; remove any granted permission no component uses, and tighten an over-broad matcher.
permission advice
- For a given component or plugin, recommend the minimal allowlist (the narrowest tool set and path scope it needs) and flag any over-grant. This is the
permission-advisorrole, folded in as a mode rather than a separate skill.
Scope
Settings are partly cross-agent: Claude Code settings.json is the rich surface; Codex config.toml supports a subset. Least privilege and secret hygiene are Universal security rules (sec 9). Hook authoring itself is askit-build-hook; this skill wires a hook's registration entry. Status line registration is askit-build-statusline.
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.
- 10d ago First seen · 31 lines · 45 tokens per session scan A f840350e88d5
askit-build-settings is a skill published in the GitHub repository product-on-purpose/agent-skills-toolkit (2 stars, last pushed today), licensed Apache-2.0. It adds 45 tokens to every session and 498 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 2026-08-31.
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