advise-skills

advise-skills is a skill for Claude Code, Codex from ProsusAI/prism. It costs 34 tokens per session (1,401 once invoked), scanned A, original, Apache-2.0.

A skill for searching registered collections of agent skills that match a requested technical task or design decision. It combines results from configured registries and local fallback sources.

In plain words
What is it for?
It is for discovering architectural skills related to a build request, reading the configured skill registries, and returning relevant matches.
Why use it?
It helps find existing guidance for a problem before designing a solution from scratch. It also identifies where each matching skill came from.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: reads .claude/ paths; mentions Claude Code.

Good fit It is for discovering architectural skills related to a build request, reading the configured skill registries, and returning relevant matches.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/prosusai/prism/advise-skills
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 ProsusAI/prism --skill advise-skills
Clone the repo
git clone --depth 1 https://github.com/ProsusAI/prism

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 advise-skills

README.md
[![agentmods](https://agentmods.dev/badge/skills/prosusai/prism/advise-skills/github.svg)](https://agentmods.dev/skills/prosusai/prism/advise-skills)
Your own site
<a href="https://agentmods.dev/skills/prosusai/prism/advise-skills"><img src="https://agentmods.dev/badge/skills/prosusai/prism/advise-skills/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.

agentmods 80×15 button for advise-skills

Your own site · 80×15
<a href="https://agentmods.dev/skills/prosusai/prism/advise-skills"><img src="https://agentmods.dev/badge/skills/prosusai/prism/advise-skills.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 34 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,401 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.
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 $0.00034 $0.01401
Opus 5 $0.00017 $0.00700
Sonnet 5 $0.00007 $0.00280
Haiku 4.5 $0.00003 $0.00140

Measured 10d ago against content hash 6f4849c2d595, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

advise-skills 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 10d 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.

import json, os, urllib.request, urllib.error
skills/advise-skills/SKILL.md · 143 lines

How it starts

The opening of the file, as written. The whole thing — 143 lines — stays where its author put it; the contents beside it link to each section on GitHub.

When to use this skill

Use when the user wants to find skills relevant to a task or architectural decision. Invoked as /advise-skills <query> (Claude Code) or @advise-skills <query> (Cursor).

Configuration

  • Primary source: All configured registries in ~/.prism/registries.json (with per-registry caching and source tagging)
  • Fallback 1: Local skill-registry.json in the current project directory
  • Fallback 2: Local _analysis/extracted_skills_codebase/ skill directories
  • Authentication: REGISTRY_TOKEN environment variable (global override) or per-registry token from registries.json

Skills from multiple registries are merged and each result is tagged with [registry-name] (e.g., [team], [community]) to identify the source.

Instructions

Step 1 -- Resolve skill registry source

Read ~/.prism/skills/_shared/registry-fetch.md and follow its instructions. It resolves all configured registries with ETag caching and local fallbacks, returning a skills array where each entry is tagged with _registry.

Outcomes:

  • Valid JSON array → use as the skills list, proceed to Step 2
  • REGISTRY_EMPTY → registry reached but empty, proceed to Step 2
  • NO_REGISTRIES → no registry reachable, stop (the shared file handles the user message)

Step 2 -- Check for empty registry

If the skills array from the resolved source is empty, respond with: "No skills have been published to the registry yet." and stop.

Step 3 -- Extract trigger clauses

For each entry in the skills array, extract the TRIGGER when clause from its description field. This clause defines the scenarios where the skill is relevant.

Step 4 -- Match and rank

Compare the user's query against each trigger clause semantically. A skill matches if the user's intent aligns with at least one trigger scenario. Require genuine semantic alignment -- do not match on superficial keyword overlap.

Rank matches by relevance to the user's query.

Step 5 -- Respond with match table

Read the full file on GitHub · 143 lines

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. 10d ago First seen · 143 lines · 34 tokens per session scan A 6f4849c2d595

Subscribe to this mod's changes

advise-skills is a skill published in the GitHub repository ProsusAI/prism (20 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 34 tokens to every session and 1,401 once invoked, about $0.0002 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.

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