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 vinnie357/claude-skills --skill valegit clone --depth 1 https://github.com/vinnie357/claude-skillsWrote 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/vinnie357/claude-skills/vale)<a href="https://agentmods.dev/skills/vinnie357/claude-skills/vale"><img src="https://agentmods.dev/badge/skills/vinnie357/claude-skills/vale/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/vinnie357/claude-skills/vale"><img src="https://agentmods.dev/badge/skills/vinnie357/claude-skills/vale.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00083 | $0.01779 |
| Opus 5 | $0.00042 | $0.00890 |
| Sonnet 5 | $0.00017 | $0.00356 |
| Haiku 4.5 | $0.00008 | $0.00178 |
Grade A, and why
vale 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 5d 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.
How it starts
The opening of the file, as written. The whole thing — 112 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Vale
Vale is a command-line prose linter. It applies declarative YAML rules to Markdown, checking word choice, sentence shape, and terminology. It works the way a compiler checks syntax — deterministically, on every run, without a human rereading the diff.
When to reach for it
Reach for Vale when a team wants a style rule enforced in CI, not just repeated in review comments. Typical rules: banned words, hedged directives, sentence-length caps, terminology consistency, passive-voice detection. A rule written once as a Vale style runs on every PR. A rule stated only in a CLAUDE.md runs only when a reviewer remembers it.
Install and pin
# mise.toml
[tools]
vale = "3.18.0"
mise install
mise exec -- vale --version # vale version 3.18.0
vale is a mise registry short name; the pin needs no backend prefix. It resolves to aqua:vale-cli/vale — confirm with mise registry | grep '^vale'.
Pin the exact version, not latest. Rule semantics shift between Vale minor releases — a new default, a changed regex engine, an added extension point. An unpinned latest lets CI absorb that drift silently. A pinned version fails loudly on mise install instead, at the moment someone chooses to bump it.
The eleven extension points
Every Vale rule extends exactly one of these. Pick the point by what the rule needs to see, not by habit.
| Extension | Fits |
|---|---|
existence |
Flag a fixed list of banned or watched tokens |
substitution |
Flag a token and suggest its replacement |
occurrence |
Cap how many times a pattern appears in a scope |
repetition |
Catch an immediate word repeated back to back |
consistency |
Force one spelling of a term across the whole document set |
conditional |
Require a second pattern wherever a first pattern appears |
capitalization |
Enforce a heading or title case convention |
metric |
Gate on a computed formula, such as a readability score |
spelling |
Check against a dictionary, with custom word lists |
sequence |
Match a sequence of tokens by part-of-speech tag |
script |
Run a custom Tengo script for logic no built-in extension covers |
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.
- 5d ago First seen · 112 lines · 83 tokens per session scan A 797ce5a3d350
vale is a skill published in the GitHub repository vinnie357/claude-skills (25 stars, last pushed 3d ago), licensed MIT. It adds 83 tokens to every session and 1,779 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 2026-09-04.
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