What is ledger-memory-market marketplace?

A plugin package that gives coding agents persistent memory backed by an append-only ledger, a record where entries are added rather than overwritten. It includes safeguards for retracting wrong facts and generates a MEMORY.md view.

Use it to retain project facts, user feedback, decisions, and other durable context for future coding-agent sessions.

It keeps useful project knowledge between sessions while preserving a history of memory changes and corrections.

ledger-memory-market marketplace — Plugin by prime-radiant-inc

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/prime-radiant-inc/ledger-memory

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.

README.md

[![agentmods](https://agentmods.dev/badge/plugins/prime-radiant-inc/ledger-memory/marketplace/github.svg)](https://agentmods.dev/plugins/prime-radiant-inc/ledger-memory/marketplace)

Your own site

<a href="https://agentmods.dev/plugins/prime-radiant-inc/ledger-memory/marketplace"><img src="https://agentmods.dev/badge/plugins/prime-radiant-inc/ledger-memory/marketplace/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.

Your own site · 80×15

<a href="https://agentmods.dev/plugins/prime-radiant-inc/ledger-memory/marketplace"><img src="https://agentmods.dev/badge/plugins/prime-radiant-inc/ledger-memory/marketplace.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 Not applicable: nothing here is loaded into a session.

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

ledger-memory-market marketplace 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 2mo 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/marketplace.json · 30 lines

What it actually says

{
  "name": "ledger-memory-market",
  "description": "Ledger-backed persistent memory for coding agents",
  "plugins": [
    {
      "name": "ledger-memory",
      "description": "Ledger-backed persistent memory for coding agents: append-only facts with retraction vaccines, scars, and a generated MEMORY.md projection",
      "version": "0.1.4",
      "source": {
        "source": "url",
        "url": "https://github.com/prime-radiant-inc/ledger-memory"
      },
      "author": {
        "name": "Jesse Vincent",
        "email": "[email protected]"
      },
      "category": "Developer Tools",
      "keywords": [
        "memory",
        "ledger",
        "persistence"
      ]
    }
  ],
  "owner": {
    "name": "Jesse Vincent",
    "email": "[email protected]"
  }
}

Contents

The plugins it lists here

This marketplace lists 1 plugin kept in the same repository. Each has its own page, its own measurements and its own install command.

Plugin ledger-memory 3 inside A not measured

Files

What ships with it

1 file beside marketplace.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.

plugin.json 533 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.

2mo ago First seen · 30 lines scan A 68a68e266da0

Subscribe to this mod's changes

ledger-memory-market marketplace is a plugin published in the GitHub repository prime-radiant-inc/ledger-memory (15 stars, last pushed 2mo 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

ledger-memory-market marketplace next to 6 plugins from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
ledger-memory-market marketplaceprime-radiant-inc/ledger-memory	Plugin	15	2mo ago	MIT	A	—	Claude Code
open-knowledge-vaultglebis/claude-skills	Plugin	409	yesterday	MIT	A	—	Claude Code
knowledge-and-memoryoaustegard/claude-skills	Plugin	158	4d ago	MIT	A	—	Claude Code
paimnott/PAI	Plugin	67	7d ago	MIT	A	—	Claude Code
tree-ring-memoryTerminallyLazy/Tree-Ring-Memory	Plugin	22	1mo ago	MIT	A	—	Claude Code
claude-mega-brainguhcostan/claude-mega-brain	Plugin	127	3mo ago	MIT	A	—	Claude Code
vault-templateballred/obsidian-claude-pkm	Plugin	1.9k	8mo ago	MIT	A	—	Claude Code