prism-advise

prism-advise is a skill for Claude Code from jakeefr/prism. It costs 33 tokens per session (671 once invoked), scanned A, original, MIT.

A recommendation tool for improving CLAUDE.md, the file that gives Claude project-specific instructions. It uses recorded coding-session data to suggest changes.

In plain words
What is it for?
Auditing, fixing, or improving a project’s CLAUDE.md file. It can also explain what may be wrong with the file.
Why use it?
It helps find missing, ineffective, or unnecessary instructions instead of relying on guesswork. Recommendations can be based on the current project or an AgentsView session database.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: mentions CLAUDE.md.

Part of the prism plugin — 3 skills shipped together

Good fit Auditing, fixing, or improving a project’s CLAUDE.md file. It can also explain what may be wrong with the file.

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

Made for: Claude Code.

Or install prism, the plugin that ships this one along with the rest of its 3 skills.

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 prism-advise

README.md
[![agentmods](https://agentmods.dev/badge/skills/jakeefr/prism/prism-advise.svg)](https://agentmods.dev/skills/jakeefr/prism/prism-advise)
Your own site
<a href="https://agentmods.dev/skills/jakeefr/prism/prism-advise"><img src="https://agentmods.dev/badge/skills/jakeefr/prism/prism-advise.svg" alt="Measured on agentmods" height="20"></a>
Per session 33 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 671 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. 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 $0.00033 $0.00671
Opus 5 $0.00016 $0.00336
Sonnet 5 $0.00007 $0.00134
Haiku 4.5 $0.00003 $0.00067

Measured 8d ago against content hash 6d6c1b6de353, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

prism-advise 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 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.

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.

skills/prism-advise/SKILL.md · 92 lines

How it starts

The opening of the file, as written. The whole thing — 92 lines — stays where its author put it; the contents beside it link to each section on GitHub.

prism-advise

Get concrete CLAUDE.md recommendations based on real session data.

When to use

When the user asks to audit their CLAUDE.md, fix their CLAUDE.md, improve their CLAUDE.md, or understand what is wrong with it.

Before running

First check if PRISM is installed:

prism --version

If the command is not found, install it first:

pip install prism-cc

Then verify it installed correctly:

prism --version

Once confirmed installed, proceed with the advise command.

Usage

Run the advisor for the current project:

prism advise --project .

For a different project:

prism advise --project <path>

From an agentsview database (real API token counts, richer data):

prism advise --source agentsview
prism advise --source agentsview --agentsview-db /path/to/sessions.db

DB path resolution: AGENTSVIEW_DATA_DIRAGENT_VIEWER_DATA_DIR~/.agentsview/sessions.db. Note: --project cannot be used with --source agentsview.

Interpreting the output

PRISM prints recommendations with four action types:

  • ADD means a new rule should be added to CLAUDE.md. Session data shows a problem that no existing rule addresses. Example: retry loops caused by missing non-interactive flags.
  • TRIM means lines should be removed from CLAUDE.md. Usually personality or tone instructions past line 80 that waste tokens on every tool call.
  • WARN means an existing rule is being violated in sessions. The rule exists but Claude is not following it. May need stronger phrasing or better placement.
  • RESTRUCTURE means rules should be moved. Either to subdirectory CLAUDE.md files (if they only apply to one part of the codebase) or to the top/bottom of the file (if critical rules are buried in the attention dead zone).

Each recommendation includes an impact level (High, Medium, Low) and evidence from actual session data.

Applying recommendations

If the user wants to apply the ADD recommendations automatically:

prism advise --project . --apply

Read the full file on GitHub · 92 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. 8d ago First seen · 92 lines · 33 tokens per session scan A 6d6c1b6de353

Subscribe to this mod's changes

prism-advise is a skill published in the GitHub repository jakeefr/prism (22 stars, last pushed 3mo ago), licensed MIT. It adds 33 tokens to every session and 671 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 2026-08-30.

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