A Claude Code plugin that keeps a project's architectural documentation in sync with its code while Claude works. It uses modular documents instead of one large static project file or a separate manual documentation pass.

Maintaining project architecture and codebase knowledge documents during development, so later work has a more current description of how the system is organized.

It reduces the chance that architecture notes become outdated as the code changes.

mnemonica — Plugin by HAX-Studio

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.

Claude Code

/plugin marketplace add HAX-Studio/mnemonica

agentmods

npx agentmods add plugins/hax-studio/mnemonica/mnemonica

Clone the repo

git clone --depth 1 https://github.com/HAX-Studio/mnemonica

Made for: Claude Code.

Per session not measured What this adds to a session before it is invoked.

When invoked not measured Not applicable: nothing here is loaded into a session.

Security scan A 0 findings. Scan, not verified.

Origin original No closer match found in the catalogue.

Security

Grade A, and why

mnemonica 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 2d 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.

.claude-plugin/plugin.json · 11 lines

What it actually says

{
  "name": "mnemonica",
  "version": "0.2.0",
  "description": "Keeps a project's architectural documentation in sync with its code by having Claude maintain modular docs as it works, instead of relying on a single static file or a human-run doc pass.",
  "keywords": ["documentation", "knowledge-base", "context-management", "codebase-docs", "audit"],
  "author": {
    "name": "p0lz0vatel"
  },
  "license": "MIT"
}

Files

What ships with it

1 file beside plugin.json 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.

marketplace.json 440 B

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.

2d ago First seen · 11 lines scan A 4bbf74bc7bb7

Subscribe to this mod's changes

mnemonica is a plugin published in the GitHub repository HAX-Studio/mnemonica (3 stars, last pushed 26d ago), licensed MIT. 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 2026-08-31.

Memory and context Planning Writing and docs ai-agents anthropic claude-code-plugin codebase-documentation context-management skills

mnemonica

Getting it into your agent

Grade A, and why

Nothing flagged

What it actually says

What ships with it

What this file has done since we first saw it

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