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 agentmods add skills/bguthrie/prospero/revisenpx skills add bguthrie/prospero --skill revisegit clone --depth 1 https://github.com/bguthrie/prosperoWrote 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/bguthrie/prospero/revise)<a href="https://agentmods.dev/skills/bguthrie/prospero/revise"><img src="https://agentmods.dev/badge/skills/bguthrie/prospero/revise.svg" alt="Measured on agentmods" 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 | $0.00032 | $0.01612 |
| Opus 5 | $0.00016 | $0.00806 |
| Sonnet 5 | $0.00006 | $0.00322 |
| Haiku 4.5 | $0.00003 | $0.00161 |
Grade A, and why
revise 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 6d 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 — 83 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Revise
The author has made an editing pass on a draft and wants feedback before publishing. Revise reads the current draft and returns specific, actionable suggestions — structural where the argument needs it, line-level where the prose does. Revise is collaborative editorial feedback; it is not the adversarial review that /critique in draft mode provides.
When to use
- The user has a draft at the resolved
post_path_pattern(typically written by/author) and has made their own editing pass, and wants feedback on the current state. - The user wants a line-level polish pass before publishing.
Do NOT use for:
- Producing a new outline from a topic → use
/interrogate. - Oppositional review before drafting → use
/critiquein outline mode. - Independent adversarial evaluation of the draft against its outline → use
/critiquein draft mode (which revise can offer to invoke; see below). - Writing the first draft → use
/author.
Preconditions
Run these as a silent preflight. Do not narrate them to the user unless a check fails; a passing preflight should be invisible.
1. .prospero/config.toml must exist
If .prospero/config.toml does NOT exist in the current working directory, invoke the prospero:init skill and follow it to completion. When init returns, resume at step 2 below. Do not proceed to revision with an unconfigured project.
2. .prospero/voice.md and .prospero/audience.md must be filled in
For each of .prospero/voice.md and .prospero/audience.md, compute byte-for-byte equality against the plugin's corresponding template at <plugin-root>/templates/voice.md and <plugin-root>/templates/audience.md. Use the plugin-root resolution procedure defined in the init skill's "Resolving the plugin's templates directory" section. Do not abbreviate its failure handling: zero matches → ask the user; multiple matches → ask the user; match found but voice.md or audience.md missing → halt with the resolved path.
- If either user file is Missing → halt with: "
.prospero/<file>is missing. Run/initto restore it, then fill it in before/revise." - If either user file is byte-for-byte equal to its template → halt with: "
.prospero/<file>is the unmodified scaffold. Fill it in before running/revise; this is the one thing Prospero cannot write for you." - Otherwise → the file is user content. Proceed.
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.
- 6d ago First seen · 83 lines · 32 tokens per session scan A 111541a61cb1
revise is a skill published in the GitHub repository bguthrie/prospero (6 stars, last pushed 4mo ago), licensed MIT. It adds 32 tokens to every session and 1,612 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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