prism-coder

prism-coder is a plugin for Claude Code from dcostenco/prism-coder. Its manifest loads nothing; the 1 skill, 1 MCP server it bundles cost 52 tokens per session together, scanned A, original, Apache-2.0.

A local memory add-on for coding agents that stores decisions, open tasks, and changed files between sessions. It also connects related past work and can detect when a long task has drifted away from its goal.

In plain words
What is it for?
Use it to restore project context, recall earlier decisions, track unfinished work, detect task drift, and work with memory-related MCP tools.
Why use it?
It reduces the need to reconstruct project context after a new session starts. Its description says stored work and the model reading it stay on the local device by default.

Plugin for Claude Code

Written for Claude Code: a Claude Code plugin manifest.

Good fit Use it to restore project context, recall earlier decisions, track unfinished work, detect task drift, and work with memory-related MCP tools.

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Install in Claude Code
/plugin marketplace add dcostenco/prism-coder
/plugin install prism-coder
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.

Clone the repo
git clone --depth 1 https://github.com/dcostenco/prism-coder

Made for: Claude Code.

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-coder

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

Your own site · 80×15
<a href="https://agentmods.dev/plugins/dcostenco/prism-coder/prism"><img src="https://agentmods.dev/badge/plugins/dcostenco/prism-coder/prism.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured The manifest loads nothing itself; its 1 skill, 1 MCP server cost 52 tokens a session between them.
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.
Security

Grade A, and why

prism-coder 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 today.

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.

plugins/prism/.claude-plugin/plugin.json · 24 lines

What it actually says

{
  "name": "prism-coder",
  "description": "Your coding agent forgets everything between sessions. Prism gives it a memory that sticks: your decisions, open TODOs, and changed files, restored the moment you return. It goes past a notes store — associative recall surfaces related past work, drift detection catches a long session wandering off-goal, and an on-device model reasons over all of it. Local-only by default: your work and the model reading it never leave your machine.",
  "version": "20.21.26",
  "author": {
    "name": "Synalux",
    "email": "[email protected]"
  },
  "homepage": "https://synalux.ai",
  "repository": "https://github.com/dcostenco/prism-coder",
  "license": "Apache-2.0",
  "keywords": [
    "memory",
    "local-first",
    "local-inference",
    "on-device",
    "drift-detection",
    "knowledge-graph",
    "offline",
    "privacy",
    "mcp"
  ]
}
Contents

What it installs

The manifest is a name and a version. 1 skill, 1 MCP server travel with it, and installing the plugin installs all of them — 52 tokens a session between them. Each is measured on its own page, and each can be installed alone.

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. today Changed 91f7e3391902
  2. 3d ago Changed 69d7164f0dca
  3. 4d ago Changed be414b8504e2
  4. 5d ago Changed 3758953d305e
  5. 6d ago Changed 9ae1be40280c
  6. 7d ago Changed f9e6fc2ac9f2
  7. 12d ago Changed b450ec0c8404
  8. 16d ago Changed 03f2a08a26d5
  9. 18d ago Changed 961ce88e3020
  10. 20d ago First seen · 24 lines scan A 909f0c3e46ef

Subscribe to this mod's changes

prism-coder is a plugin published in the GitHub repository dcostenco/prism-coder (158 stars, last pushed yesterday), licensed Apache-2.0. Its token cost is not measured: this kind of file is read by the harness, not the model. 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.