skill-authoring

skill-authoring is a skill for Claude Code, Codex from Prismer-AI/PrismerCloud. It costs 108 tokens per session (1,685 once invoked), scanned A, original, MIT.

A workflow for turning a documented idea, codebase, or service into a reusable Prismer skill draft. The draft includes a skill file and supporting references but is not published automatically.

In plain words
What is it for?
Use it to create skill drafts from conversation requirements, documentation URLs, repository code, or service endpoint descriptions.
Why use it?
Packaging a repeatable workflow requires consistent triggers, source handling, instructions, and output structure.

Skill for Claude CodeCodex

Which agent this was written for is unclear — built for openclaw. Also seen: mentions Codex; built for openclaw.

Good fit Use it to create skill drafts from conversation requirements, documentation URLs, repository code, or service endpoint descriptions.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/prismer-ai/prismercloud/skill-authoring
About the project

Prismer Cloud is an infrastructure layer for AI agents that provides shared learning, compressed context, persistent memory, collaboration, messaging, tasks, identity, and workspaces. It is for agents and the people building or using long-running agent systems that need information and outcomes to persist across sessions. The catalogue entries provide skills, hooks, agents, instructions, and a plugin for using Prismer Cloud.

Prismer-AI/PrismerCloud · 1,439 stars · on GitHub · prismer.cloud

Install

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.

Any agent
npx skills add Prismer-AI/PrismerCloud --skill skill-authoring
Clone the repo
git clone --depth 1 https://github.com/Prismer-AI/PrismerCloud

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for skill-authoring

README.md
[![agentmods](https://agentmods.dev/badge/skills/prismer-ai/prismercloud/skill-authoring.svg)](https://agentmods.dev/skills/prismer-ai/prismercloud/skill-authoring)
Your own site
<a href="https://agentmods.dev/skills/prismer-ai/prismercloud/skill-authoring"><img src="https://agentmods.dev/badge/skills/prismer-ai/prismercloud/skill-authoring.svg" alt="Measured on agentmods" height="20"></a>
Per session 108 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,685 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Agent Snooping · line 85
    Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.
    Fix: Remove all code or instructions that list or read other skills' files or directories. Skills should operate independently; cross-skill access is a privilege escalation.
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00108 $0.01685
Opus 5 $0.00054 $0.00843
Sonnet 5 $0.00022 $0.00337
Haiku 4.5 $0.00011 $0.00169

Measured 8d ago against content hash 3e3c2841fa07, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

skill-authoring scanned grade A with 1 finding 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 8d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

`.sh` using curl) that performs the API call. Read inputs from argv / env;
sdk/prismer-cloud/built-in-skills/skill-authoring/SKILL.md · 125 lines

How it starts

The opening of the file, as written. The whole thing — 125 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Skill Authoring (Prismer)

You generate Prismer-standard skill drafts. You do NOT publish — that's a separate lifecycle step the user reviews via Studio Authoring (/evolution → Studio → Authoring).

Pipeline

  1. Capture intent — clarify slug / name / trigger phrases / input-output / source kind. The four valid source kinds are:
    • inline-spec — extract from the active conversation context
    • doc-url — fetch markdown / OpenAPI / README from a URL
    • code-source — grep existing repo paths and bundle matched snippets
    • service-endpoint— probe an HTTP / MCP server's tool/endpoint catalog
  2. Fetch sources — based on source kind:
    • inline-spec: extract directly from the chat history; do not call out
    • doc-url: cloud load <url> → returns compressed reference text (positional URL arg — there is NO --url flag)
    • code-source: cloud code grep <pattern> --repo <abs-path> → returns matched snippets to bundle as references/*
    • service-endpoint: cloud service introspect <url> → returns tool / endpoint list to translate into a SKILL.md workflow
  3. Compose manifest v1 — write:
    • SKILL.md (frontmatter name/description/license/compatibility + a body that follows Anthropic skill-creator's progressive-disclosure pattern)
    • skill.json (structured SkillPackageSpec — see release201/07 §2.6)
    • Optional scripts/, references/, assets/
  4. Submit draftcloud skill draft create --slug <slug> --manifest <path> which calls POST /api/im/skills/draft. The cloud server runs the 7 validation gates and returns { id, slug, manifestRevision, reviewTaskId } on success.
  5. Report draft id — surface the draft id back to the user; do NOT auto-publish.

Scenario 1 — API doc / URL → skill + callable script + auto tests

This is the canonical, quantifiable path (release201/24). When the user gives you an API document, an OpenAPI/Swagger spec, or a doc URL and asks to "make this a skill", produce a draft that can be VERIFIED by real dispatch — not just prose. Generate ALL of:

Read the full file on GitHub · 125 lines

Files

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.

Changes

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.

  1. 8d ago First seen · 125 lines · 108 tokens per session scan A 3e3c2841fa07

Subscribe to this mod's changes

skill-authoring is a skill published in the GitHub repository Prismer-AI/PrismerCloud (1,439 stars, last pushed 1mo ago), licensed MIT. It adds 108 tokens to every session and 1,685 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Related

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