prism-analyze

prism-analyze is a skill for Claude Code from jakeefr/prism. It costs 33 tokens per session (652 once invoked), scanned A, original, MIT.

A command-line tool for checking the health of Claude Code sessions, including token use, project records, and CLAUDE.md instruction files.

In plain words
What is it for?
Use it to analyze all or one Claude Code project, get instruction-file advice, list recorded projects, or produce JSON results for scripts.
Why use it?
It helps explain why sessions fail or become inefficient by examining their saved session data and project instructions.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: reads .claude/ paths; mentions CLAUDE.md; mentions Claude Code.

Part of the prism plugin — 3 skills shipped together

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.

agentmods
npx agentmods add skills/jakeefr/prism/prism-analyze
Any agent
npx skills add jakeefr/prism --skill prism-analyze
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-analyze

README.md
[![agentmods](https://agentmods.dev/badge/skills/jakeefr/prism/prism-analyze.svg)](https://agentmods.dev/skills/jakeefr/prism/prism-analyze)
Your own site
<a href="https://agentmods.dev/skills/jakeefr/prism/prism-analyze"><img src="https://agentmods.dev/badge/skills/jakeefr/prism/prism-analyze.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 652 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00652
Opus 5 $0.00016 $0.00326
Sonnet 5 $0.00007 $0.00130
Haiku 4.5 $0.00003 $0.00065

Measured 5d ago against content hash bb0b9633736b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

prism-analyze 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.

skills/prism-analyze/SKILL.md · 101 lines

How it starts

The opening of the file, as written. The whole thing — 101 lines — stays where its author put it; the contents beside it link to each section on GitHub.

prism-analyze

Analyze Claude Code session health using PRISM.

When to use

When the user asks to analyze their Claude Code sessions, check token usage, audit their CLAUDE.md, understand why sessions are failing, list their projects, or see what PRISM can see.

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 analysis.

Usage

Run the analysis (reads JSONL from ~/.claude/projects/ by default):

prism analyze

If prism is not installed:

pip install prism-cc
prism analyze

For a specific project:

prism analyze --project <path>

For JSON output (useful for scripting):

prism analyze --json

For CLAUDE.md recommendations:

prism advise

List all projects PRISM can see:

prism projects

This prints each project name, session count, and last-active timestamp. Use it when the user asks what projects PRISM has data for, or to confirm that sessions are being recorded.

Agentsview data source

If the user has agentsview installed, PRISM can read from its SQLite database instead of raw JSONL. This gives real API token counts and agentsview's own health scores alongside PRISM's.

prism analyze --source agentsview
prism analyze --source agentsview --agentsview-db /path/to/sessions.db
prism analyze --source agentsview --json

DB path resolution when --agentsview-db is not specified: AGENTSVIEW_DATA_DIR env → AGENT_VIEWER_DATA_DIR env → ~/.agentsview/sessions.db

Use --source agentsview when the user mentions agentsview, asks for real token counts, or wants richer session data. Use the default (no flag) when they just want a quick analysis from raw session files.

What PRISM shows

  • Health scores (A-F) across 5 dimensions per project
  • Token efficiency: CLAUDE.md re-read costs, compaction frequency
  • Tool health: retry loops, edit-revert cycles, consecutive failures
  • Context hygiene: compaction loss events, mid-task boundaries
  • CLAUDE.md adherence: whether your rules are actually being followed
  • Session continuity: resume success rate, truncated sessions

Read the full file on GitHub · 101 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. 5d ago First seen · 101 lines · 33 tokens per session scan A bb0b9633736b

Subscribe to this mod's changes

prism-analyze is a skill published in the GitHub repository jakeefr/prism (22 stars, last pushed 2mo ago), licensed MIT. It adds 33 tokens to every session and 652 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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