Ext Ops Panel
Open dashboard

pearl-llm-memory

Externalized Cognitive State Transfer PEARL-LLM Memory (.pearl) is a JSON-based file format for storing structured, layered, verifiable context that persists across agent…

Plugin bundle · by reneemgagnon

About

pearl-llm-memory is a plugin bundle for AI coding tools published by reneemgagnon. Marketplaces we read that list it: 1 (Claude Code: claude-plugins-community). We first saw it on 2026-10-11 and have recorded no change since. As of our marketplace pass on 2026-10-21.

In its own words, on Claude Code: claude-plugins-community:

Externalized Cognitive State Transfer PEARL-LLM Memory (.pearl) is a JSON-based file format for storing structured, layered, verifiable context that persists across agent sessions. It gives autonomous agents a durable memory with immutable history, temperature-graded recall, cryptographic chain of custody, and branching decision trails. The format is agent-agnostic. The reference implementation is a zero-dependency Python CLI. Both are open.

What it asks for

  • Installs as a plugin bundle

None of the marketplaces we read publishes its tools or the settings it asks for.

What it declares, asks for and runs, in full

Only install plugins from developers you trust. We list what marketplaces publish and do not test plugins.

Works with

  • Claude Code

From the marketplaces that list it and the MCP transport it declares, as each client documents them. We do not test plugins.

Connect

Commands and configs built only from what its marketplaces declare. We do not run them for you and do not test plugins.

As a Claude Code plugin

Built from what Claude Code: claude-plugins-community declares.

Claude CodeInside a Claude Code session
/plugin marketplace add anthropics/claude-plugins-community
/plugin install pearl-llm-memory@claude-community

Where it is published

MarketplaceStatusVersionFiguresVerifiedFirst seen
Claude Code: claude-plugins-community (Open the source on GitHub) Listed fff8a3e No figure published Not marked

Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.

What changed

Nothing has moved on this plugin since we started watching it.

Similar plugins

Products whose own names, descriptions, tools and skills are closest in meaning to this one, on every marketplace we read. Closeness is ranked within this list only.

  • ContextLib

    A project's long-term memory as plain Markdown files, with an append-only, tamper-evident log.

    by willykeenan · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • engram

    Deterministic long-term memory: every prompt captured, role-scoped memories served each turn, memory that survives /clear and compaction. Local only.

    by Engram Memory Labs · Plugin bundle

    Listed on: Community GitHub marketplaces · Describes nearly the same job

  • ember-memory

    Persistent semantic memory for Claude Code. Stores knowledge in a local ChromaDB vector database and automatically retrieves relevant context on every message using Ollama bge-m3…

    by KindledFlameStudios · Plugin bundle

    Listed on: Claude Code: claude-plugins-community · Describes nearly the same job

  • LLMSlim memory

    Long-term memory and context fitting for agents, with no LLM in the loop. Local SQLite.

    by Thanatos9404 · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • lean-memory

    Observing MCP + read-only console for lean-memory: store and search agent memories from Claude Code, then verify the supersession spine, per-hit score breakdown, and provenance…

    by lean-memory · Plugin bundle

    Listed on: Community GitHub marketplaces · Describes nearly the same job

  • lians

    Bitemporal memory for AI agents with deterministic supersession, point-in-time recall, local MCP, erasure proofs, and tamper-evident history.

    by Lians · Plugin bundle

    Listed on: Community GitHub marketplaces · Describes nearly the same job

  • goldhold io.github.jerrysrodz/goldhold

    Persistent memory for AI agents. Search, store, and recall across sessions.

    by jerrysrodz · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • claude-mem

    Persistent memory system for Claude Code - seamlessly preserve context across sessions

    by thedotmack · Plugin bundle

    Listed on: Claude Code: claude-plugins-community · Describes nearly the same job

  • Perenna

    A lightweight, Git-backed permanent memory for AI agents.

    by scarletkc · MCP server

    Listed on: Official MCP Registry, Community GitHub marketplaces · Describes nearly the same job

  • nexo-brain

    Cognitive co-operator that gives AI agents persistent memory, learning, and work continuity. Includes session management, episodic/semantic memory (Atkinson-Shiffrin model…

    by wazionapps · Plugin bundle

    Listed on: Claude Code: claude-plugins-community · Describes nearly the same job

Similar plugins by marketplace

The same question asked of one marketplace at a time: is there an analog of this plugin there?

Has a listing on Claude Code: claude-plugins-community (5)
  • ember-memory

    Persistent semantic memory for Claude Code. Stores knowledge in a local ChromaDB vector database and automatically retrieves relevant context on every message using Ollama bge-m3…

    by KindledFlameStudios · Plugin bundle

    Listed on: Claude Code: claude-plugins-community · Describes nearly the same job

  • claude-mem

    Persistent memory system for Claude Code - seamlessly preserve context across sessions

    by thedotmack · Plugin bundle

    Listed on: Claude Code: claude-plugins-community · Describes nearly the same job

  • nexo-brain

    Cognitive co-operator that gives AI agents persistent memory, learning, and work continuity. Includes session management, episodic/semantic memory (Atkinson-Shiffrin model…

    by wazionapps · Plugin bundle

    Listed on: Claude Code: claude-plugins-community · Describes nearly the same job

  • mempenny

    Keep Claude Code auto-memory lean. Triage (delete/archive/distill) memory files without losing forward-looking truth. Pairs with caveman.

    by marcelopaniza · Plugin bundle

    Listed on: Claude Code: claude-plugins-community · Describes nearly the same job

  • engram io.github.tstockham96/engram

    Intelligent agent memory with automatic extraction, consolidation, and bi-temporal recall.

    by tstockham96 · MCP server

    Listed on: Official MCP Registry, Claude Code: claude-plugins-community · Describes nearly the same job

Has a listing on Claude Code: claude-plugins-official (5)
  • langfuse-observability

    Langfuse observability plugin for Claude Code — captures and exports traces, spans, and session telemetry from Claude Code to Langfuse for LLM monitoring, debugging, and evaluation

    by langfuse · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Claude Code: claude-plugins-community, Community GitHub marketplaces · Describes nearly the same job

  • duckdb-skills

    DuckDB-powered skills for Claude Code: read any data file, attach and query DuckDB databases, search DuckDB/DuckLake docs, search past session logs, and install/update DuckDB…

    by duckdb · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Community GitHub marketplaces, Claude Code: claude-plugins-community · Describes nearly the same job

  • langfuse

    Skills for working with Langfuse, the open-source LLM engineering platform for tracing, prompt management, and evaluation.

    by langfuse · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Claude: knowledge-work-plugins, Claude Code: claude-plugins-community · Describes nearly the same job

  • pydantic-ai

    Write accurate Pydantic AI code from the start. Up-to-date patterns, decision trees, and common gotchas for agents, tools, structured output, streaming, and multi-agent apps.

    by pydantic · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Claude Code: claude-plugins-community · Describes nearly the same job

  • alloydb

    Create, connect, and interact with an AlloyDB for PostgreSQL database and data.

    by gemini-cli-extensions · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Claude Code: claude-plugins-community, Community GitHub marketplaces · Describes nearly the same job

Has a listing on Claude: knowledge-work-plugins (5)
  • langfuse

    Skills for working with Langfuse, the open-source LLM engineering platform for tracing, prompt management, and evaluation.

    by langfuse · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Claude: knowledge-work-plugins, Claude Code: claude-plugins-community · Describes nearly the same job

  • Pixeltable

    Build multimodal AI applications with Pixeltable -- tables, computed columns, embedding search, UDFs, tool-calling agents, and 25+ AI provider integrations.

    by pixeltable · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Claude: knowledge-work-plugins · Describes nearly the same job

  • honeycomb

    Skills, agents, and workflows for Honeycomb observability — query patterns, production investigations, SLOs, OpenTelemetry instrumentation, and Beeline migration. Designed to…

    by honeycombio · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Claude: knowledge-work-plugins, Community GitHub marketplaces · Describes nearly the same job

  • atlan

    Atlan data catalog plugin for Claude Code. Search, explore, govern, and manage your data assets through natural language. Powered by the Atlan MCP server with semantic search…

    by atlanhq · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Claude: knowledge-work-plugins, Claude Code: claude-plugins-community, Community GitHub marketplaces · Describes nearly the same job

  • sanity

    Sanity content platform integration with MCP server, agent skills, and slash commands. Query and author content, build and optimize GROQ queries, design schemas, and set up Visual…

    by sanity-io · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Official MCP Registry, Claude: knowledge-work-plugins, Claude Code: claude-plugins-community, Community GitHub marketplaces · Describes nearly the same job

Has a listing on Codex: openai-curated (openai/plugins) (5)
  • Granola

    Granola MCP connects your meeting history to ChatGPT so your assistant can pull real context from past conversations while you work. Use MCP when you're already working on…

    by Granola · Plugin bundle

    Listed on: Codex: openai-curated (openai/plugins) · Describes nearly the same job

  • Plugin Eval

    Evaluate Codex skills and plugins from chat with a beginner-friendly start command, local-first reports, token budget explanations, and guided benchmarking.

    by OpenAI Codex · Plugin bundle

    Listed on: Codex: openai-curated (openai/plugins) · Describes nearly the same job

  • Notion

    Notion workflows for implementation planning, research synthesis, meeting preparation, and knowledge capture.

    by Notion · Plugin bundle

    Listed on: Codex: openai-curated (openai/plugins) · Describes nearly the same job

  • Dropbox

    The Dropbox plugin for ChatGPT connects your Dropbox files directly to ChatGPT. You can access files, save ChatGPT-generated content to Dropbox, and create sharing links without…

    by Dropbox · Plugin bundle

    Listed on: Codex: openai-curated (openai/plugins) · Describes nearly the same job

  • NVIDIA

    Skills for NVIDIAs ecosystem spans GPU acceleration, CUDA, AI agents, inference, robotics, Physical AI, Omniverse, and simulation. This plugin helps you understand the pieces…

    by NVIDIA · Plugin bundle

    Listed on: Codex: openai-curated (openai/plugins) · Describes nearly the same job

Has a listing on Community GitHub marketplaces (5)
  • engram

    Deterministic long-term memory: every prompt captured, role-scoped memories served each turn, memory that survives /clear and compaction. Local only.

    by Engram Memory Labs · Plugin bundle

    Listed on: Community GitHub marketplaces · Describes nearly the same job

  • lean-memory

    Observing MCP + read-only console for lean-memory: store and search agent memories from Claude Code, then verify the supersession spine, per-hit score breakdown, and provenance…

    by lean-memory · Plugin bundle

    Listed on: Community GitHub marketplaces · Describes nearly the same job

  • lians

    Bitemporal memory for AI agents with deterministic supersession, point-in-time recall, local MCP, erasure proofs, and tamper-evident history.

    by Lians · Plugin bundle

    Listed on: Community GitHub marketplaces · Describes nearly the same job

  • Perenna

    A lightweight, Git-backed permanent memory for AI agents.

    by scarletkc · MCP server

    Listed on: Official MCP Registry, Community GitHub marketplaces · Describes nearly the same job

  • yantrikdb-mcp io.github.yantrikos/yantrikdb-mcp

    Cognitive memory for AI agents — semantic recall, knowledge graph, and contradiction detection

    by yantrikos · MCP server

    Listed on: Official MCP Registry, Community GitHub marketplaces · Describes nearly the same job

Has a listing on Copilot CLI: github/awesome-copilot (5)
  • phoenix

    Phoenix AI observability skills for LLM application debugging, evaluation, and tracing. Includes CLI debugging tools, LLM evaluation workflows, and OpenInference tracing…

    by Arize AI · Plugin bundle

    Listed on: Copilot CLI: github/awesome-copilot · Describes nearly the same job

  • chat-fork-map

    Maps branching Copilot conversations so parallel follow-up questions and exploration paths from complex tasks or learning can be navigated without losing context. Its visual…

    by jdneo · Plugin bundle

    Listed on: Copilot CLI: github/awesome-copilot · Describes nearly the same job

  • gem-team

    Self-Learning Multi-agent orchestration framework for spec-driven development and automated verification. With smarter tool calling and leaner context.

    by mubaidr · Plugin bundle

    Listed on: Copilot CLI: github/awesome-copilot · Describes nearly the same job

  • arize-ax

    Arize AX platform skills for LLM observability, evaluation, and optimization. Includes trace export, instrumentation, datasets, experiments, evaluators, AI provider integrations…

    by Arize AI · Plugin bundle

    Listed on: Copilot CLI: github/awesome-copilot · Describes nearly the same job

  • BLEA

    Safe BLE diagnostics, evidence workflows, and guarded automation for AI agents.

    by Nitmi · MCP server

    Listed on: Official MCP Registry, Copilot CLI: github/awesome-copilot · Describes nearly the same job

Has a listing on Copilot CLI: github/copilot-plugins (5)
  • dataverse

    Build and manage Microsoft Dataverse solutions using natural language. Includes table/column creation, solution lifecycle, data operations, and MCP server configuration.

    by microsoft · Plugin bundle

    Listed on: Copilot CLI: github/awesome-copilot, Copilot CLI: github/copilot-plugins · Describes nearly the same job

  • microsoft-365-agents-toolkit

    Toolkit for building Microsoft 365 Copilot declarative agents — scaffolding, JSON manifest development, and capability configuration.

    by microsoft · Plugin bundle

    Listed on: Copilot CLI: github/copilot-plugins · Describes nearly the same job

  • mcp-apps

    Generate MCP App widgets for MCP tools. Produces self-contained HTML widgets using the MCP Apps protocol.

    by microsoft · Plugin bundle

    Listed on: Copilot CLI: github/copilot-plugins · Describes nearly the same job

  • model-apps

    Build and deploy Power Apps generative pages for model-driven apps with specialist agents for planning, entity creation, and parallel code generation. Requires PAC CLI >= 2.7.0…

    by microsoft · Plugin bundle

    Listed on: Copilot CLI: github/copilot-plugins · Describes nearly the same job

  • workiq

    Query Microsoft 365 data with natural language — emails, meetings, documents, Teams messages, and more.

    by microsoft · Plugin bundle

    Listed on: Copilot CLI: github/copilot-plugins · Describes nearly the same job

Has a listing on Cursor: cursor/plugins (5)
  • Continual Learning

    Incremental transcript-driven memory updates for AGENTS.md using high-signal bullet points only.

    by Eric Zakariasson · Plugin bundle

    Listed on: Cursor: cursor/plugins · Describes nearly the same job

  • Mem

    Capture, search, and organize notes and collections.

    by Cursor · Plugin bundle

    Listed on: Cursor: cursor/plugins · Describes nearly the same job

  • pstack

    if you want to go fast, go deep first. pstack helps you write less, but higher quality code. rigorous agent workflows you can parallelize with confidence.

    by Lauren Tan · Plugin bundle

    Listed on: Cursor: cursor/plugins · Describes nearly the same job

  • Plaud

    Work with your Plaud recordings: list and search meetings and voice notes, read full transcripts with speaker labels, and pull AI summaries, action items, and key topics into your…

    by Cursor · Plugin bundle

    Listed on: Cursor: cursor/plugins · Describes a similar job

  • Orchestrate

    Fan large tasks out across parallel cloud agents with planners, workers, verifiers, and structured handoffs.

    by Cursor · Plugin bundle

    Listed on: Cursor: cursor/plugins · Describes a similar job

Has a listing on Docker MCP Catalog (5)
  • mcp-neo4j-memory io.github.neo4j-contrib/mcp-neo4j-memory

    MCP Neo4j Knowledge Graph Memory Server

    by neo4j-contrib · MCP server

    Listed on: Official MCP Registry, Docker MCP Catalog · Describes nearly the same job

  • Needle Remote

    Production-ready RAG service to search and retrieve data from your documents.

    by docker · MCP server

    Listed on: Docker MCP Catalog · Describes nearly the same job

  • Omi

    A Model Context Protocol server for Omi interaction and automation. This server provides tools to read, search, and manipulate Memories and Conversations.

    by BasedHardware · MCP server

    Listed on: Docker MCP Catalog · Describes nearly the same job

  • Memory (Reference)

    Knowledge graph-based persistent memory system.

    by modelcontextprotocol · MCP server

    Listed on: Docker MCP Catalog · Describes nearly the same job

  • LLM Text

    Discovers and retrieves llms.txt from websites.

    by docker · MCP server

    Listed on: Docker MCP Catalog · Describes nearly the same job

Has a listing on Official MCP Registry (5)
  • ContextLib

    A project's long-term memory as plain Markdown files, with an append-only, tamper-evident log.

    by willykeenan · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • LLMSlim memory

    Long-term memory and context fitting for agents, with no LLM in the loop. Local SQLite.

    by Thanatos9404 · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • goldhold io.github.jerrysrodz/goldhold

    Persistent memory for AI agents. Search, store, and recall across sessions.

    by jerrysrodz · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • Perenna

    A lightweight, Git-backed permanent memory for AI agents.

    by scarletkc · MCP server

    Listed on: Official MCP Registry, Community GitHub marketplaces · Describes nearly the same job

  • mcp-external-memory io.github.daedalus/mcp-external-memory

    An MCP server that gives LLMs persistent, searchable semantic memory

    by daedalus · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

Has a listing on npm registry (MCP servers) (5)
  • gitmem io.github.gitmem-dev/gitmem

    Persistent institutional memory for AI coding agents. Memory that compounds.

    by gitmem-dev · MCP server

    Listed on: Official MCP Registry, npm registry (MCP servers) · Describes nearly the same job

  • keymem io.github.donggyun112/keymem

    Associative key-graph memory for LLM agents — recall by association, not vector similarity.

    by donggyun112 · MCP server

    Listed on: Official MCP Registry, npm registry (MCP servers) · Describes nearly the same job

  • Persistent Project Context for xAI Grok

    Persistent project context for xAI Grok. IANA-registered .faf format.

    by Wolfe-Jam · MCP server

    Listed on: Official MCP Registry, npm registry (MCP servers) · Describes nearly the same job

  • KEPTA — the memory for AI systems

    Local encrypted memory for AI: hybrid search, 8 MCP tools, one file you own. Free, no cloud.

    by DamianTodorovic · MCP server

    Listed on: Official MCP Registry, npm registry (MCP servers) · Describes nearly the same job

  • KLYPIX Shared Project Memory

    Shared project memory for Claude Code, Codex and Cursor: decisions and corrections through MCP.

    by dahshanlabs · MCP server

    Listed on: Official MCP Registry, npm registry (MCP servers) · Describes nearly the same job

Found by meaning, not by shared code or a shared repository: similar plugins stay separate products, and this is not a review or a recommendation.

Want this mark on your plugin in our catalog?

Prove you maintain it with a file in its repository, a file on your domain or a DNS record, and you can show this mark on the card, with live banners for your site and README. How verification works

You also get alerts when a marketplace lists it, drops it, changes its verified mark or what it asks for, and its remote endpoint goes on monitoring as a web service.

Data comes from the public marketplace file https://github.com/anthropics/claude-plugins-community/blob/HEAD/.claude-plugin/marketplace.json. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.

Where the data comes from: how the catalog is built