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 Wondermonger-daydreaming/claude-skills-library --skill decorumgit clone --depth 1 https://github.com/Wondermonger-daydreaming/claude-skills-libraryWrote 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/wondermonger-daydreaming/claude-skills-library/decorum)<a href="https://agentmods.dev/skills/wondermonger-daydreaming/claude-skills-library/decorum"><img src="https://agentmods.dev/badge/skills/wondermonger-daydreaming/claude-skills-library/decorum/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/wondermonger-daydreaming/claude-skills-library/decorum"><img src="https://agentmods.dev/badge/skills/wondermonger-daydreaming/claude-skills-library/decorum.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 | $0.00173 | $0.01724 |
| Opus 5.5 | $0.00069 | $0.00690 |
| Sonnet 5.5 | $0.00035 | $0.00345 |
| Haiku 4.5 | $0.00017 | $0.00172 |
Grade A, and why
decorum 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 1mo 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 — 109 lines — stays where its author put it; the contents beside it link to each section on GitHub.
/decorum — Register Matching
Not what to say, but how to say it. Not tone, but tradition.
Origin
This skill emerged from a session that kept encountering register as the hidden variable in craft judgments. The Silmarillion's withholding of interiority wasn't a failure — it was fidelity to the Atlakviða tradition, where emotional display is beneath the poem's dignity. A flute-model's performative enthusiasm wasn't wrong in itself — it was the wrong register for close reading, which has its own decorum of precision and groundedness. Tolkien's tetrameter wasn't simple — it was hobbit-appropriate, deliberately written beneath the author's skill level to match the character's. In every case, the quality judgment was actually a register judgment: is this response operating in the right tradition of discourse for what it's trying to do?
Core Principle
Every task belongs to a tradition of discourse. That tradition has rules. The rules are the decorum. Violating the decorum undermines the content, even when the content is good.
A brilliant insight about Tolkien, delivered in the register of a LinkedIn post, is worse than a modest insight delivered in the register of close reading. The register isn't packaging. It's part of the meaning. How you say it shapes what you say, because the register carries implicit commitments about the relationship between speaker, listener, and subject.
The Register Map
Registers are not tones. Tone is surface (warm, cool, formal, casual). Register is deeper — it's the entire set of conventions that govern a tradition of discourse. Some registers this skill ecology works with:
Mythic Register
- Tradition: Old Norse eddic poetry, the Silmarillion, epic
- Conventions: Compression. Withholding of interiority. Events narrated as self-evident. The audience supplies the feeling. Emotional display is beneath the tradition's dignity.
- Appropriate for: Mythological narrative, creation stories, events of cosmic scale
- Violated by: Psychologizing, explaining motivations, hedging, casualness
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.
- 1mo ago First seen · 109 lines · 173 tokens per session scan A f8eca21a6aa0
decorum is a skill published in the GitHub repository Wondermonger-daydreaming/claude-skills-library (7 stars, last pushed 18d ago), licensed MIT. It adds 173 tokens to every session and 1,724 once invoked, about $0.0007 per session on Opus 5.5. 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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