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 OutlineDriven/outline-driven-development --skill copywriting-prose-creatorgit clone --depth 1 https://github.com/OutlineDriven/outline-driven-developmentWrote 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/outlinedriven/outline-driven-development/copywriting-prose-creator)<a href="https://agentmods.dev/skills/outlinedriven/outline-driven-development/copywriting-prose-creator"><img src="https://agentmods.dev/badge/skills/outlinedriven/outline-driven-development/copywriting-prose-creator/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/outlinedriven/outline-driven-development/copywriting-prose-creator"><img src="https://agentmods.dev/badge/skills/outlinedriven/outline-driven-development/copywriting-prose-creator.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 | $0.00070 | $0.03623 |
| Opus 5 | $0.00035 | $0.01811 |
| Sonnet 5 | $0.00014 | $0.00725 |
| Haiku 4.5 | $0.00007 | $0.00362 |
Grade A, and why
copywriting-prose-creator 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 — 173 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Copywriting prose creator
Contract
| Field | Bound contract |
|---|---|
| Trigger | User asks to codify, audit, or port a brand's measurable prose style rules (syntax, rhythm, mechanics) apart from its emotional tone. |
| Authority | Reversible local write restricted strictly to PROSE.md or PROSE-.md. Rollback is deleting or reverting that file; no other file is touched. |
| Side effect | Writes PROSE.md or PROSE-.md. May spawn at most 5 read-only audit sub-agents that read corpus files and report metrics but write nothing. |
| Done | A versioned PROSE.md or PROSE-.md that an editor can apply line by line, with a semver footer, owner, date, and changelog stub. |
Inputs
- Mode: one of BUILD, ADAPT, AUDIT. Must be supplied or inferred from the request; ask if ambiguous.
- Content corpus (optional, for AUDIT and for BUILD diagnosis): a folder of .md/.txt files or a list of URLs. When present and > 50 pieces, AUDIT runs before BUILD so codification rests on empirical patterns, not invented ones.
- Existing PROSE.md (required for ADAPT): the source guide to project onto a new channel.
- SOUL.md (optional): storyteller archetype, mission, point of view. Feeds BUILD.
- TONE.md (optional): emotional posture across four dimensions (funny to serious, formal to casual, respectful to irreverent, enthusiastic to matter-of-fact). Tone sets the emotional posture; prose sets its measurable expression. Two brands with identical tone can have non-interchangeable prose; this skill codifies the prose, not the tone. When TONE.md is missing, capture the four dimensions inline during the discovery interview.
- Target channel (required for ADAPT): long-form articles, social posts, email and newsletter, or marketing copy.
Procedure
Prose is a reproducible craft that a forensic linguist could measure on a page: sentence length, clause depth, lexicon, parallelism, signature moves. Use thorough reasoning on every BUILD and ADAPT invocation; shallow reasoning produces generic guides that flatten into LLM-default register, the exact failure this skill exists to prevent.
What ships with it
1 file 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 · 173 lines · 70 tokens per session scan A 22c12511f7dd
copywriting-prose-creator is a skill published in the GitHub repository OutlineDriven/outline-driven-development (52 stars, last pushed 3d ago), licensed Apache-2.0. It adds 70 tokens to every session and 3,623 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 2026-09-03.
Other skills, from other repositories
audit-project
Run an iterative multi-agent code audit until critical and high findings are resolved. Use when the user says "audit my code", "find all the bugs", "deep code audit", "iterative review", or "review until clean".
duet
Use when the user invokes /duet, says "pair with me", or faces aesthetic, architectural, or irreversible decisions.
goal-prompt-drafting
Use when asked to draft copy-ready /goal objectives for long-running agents; returns one normalized one-line objective with measurable end state, grounded proof, easy-out invariants, a stop clause, and a Missing list. Not for source or remote-system changes.
handoff-prompt
Use when the user asks for a handoff, delegation, or clipboard-ready prompt for another agent: a standalone path-free prompt copied to the clipboard, confirmed by title. Not for session-snapshot briefs — use handoff; never remote, credential, publish, deploy, or irreversible.
publish-branch
Use when asked to publish the checked-out branch: commit and push it on whatever branch it is, the default branch included. Not for creating branches, PRs, force pushes, or pushing any other branch; when the request excludes the default branch, use commit-push-current.
drill
Use when a concept needs practising rather than explaining: run a scaffolded exercise from worked example to independent problem, quiz the learner, run spaced recall over what they cleared, or probe for the gaps blocking what they want next. For explanation, use explain-concept; for an end-to-end build, use capstone.