Recallnest

RecallNest

Shared Memory Layer for Claude Code, Codex, and Gemini CLI

One memory. Three terminals. Context that survives across windows.

A local-first memory system backed by LanceDB that turns scattered conversation history into reusable knowledge — shared across your coding agents, recalled automatically.

[](https://github.com/AliceLJY/recallnest) [](LICENSE) [](https://bun.sh) [](https://lancedb.com) [](https://modelcontextprotocol.io) [](https://github.com/AliceLJY/recallnest) [](https://github.com/AliceLJY/recallnest)

English | [简体中文](README_CN.md) | [Roadmap](ROADMAP.md)

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Why RecallNest?

Coding agents forget everything between windows. Your context — project configs, debugging decisions, entity mappings — is scattered across Claude Code, Codex, and Gemini CLI with no shared memory.

RecallNest solves this: a single LanceDB-backed memory layer that your coding agents read and write. Context stored in one window is auto-recalled in another. Sessions checkpoint on exit and resume on start. Memory decays, evolves, and self-organizes — not just raw log storage.

Quick Start

Option A: Claude Code Plugin (recommended)

/plugin marketplace add AliceLJY/recallnest
/plugin install recallnest@AliceLJY

RecallNest starts automatically with Claude Code. No manual MCP config needed.

> Requires: Bun (recommended) or Node.js 18+. Dependencies install on first start.

Option B: npm install

npx recallnest --help          # run directly
# or
npm install -g recallnest      # install globally
recallnest doctor

Works with Node.js 18+ (via tsx) or Bun. No git clone needed.

Option C: Manual setup

git clone https://github.com/AliceLJY/recallnest.git
cd recallnest
bun install
cp config.json.example config.json
cp .env.example .env
# Edit .env → add your JINA_API_KEY

Start the server

bun run api
# → RecallNest API running at http://localhost:4318

Try it

# Store a memory
curl -X POST http://localhost:4318/v1/store \
  -H "Content-Type: application/json" \
  -d '{"text": "User prefers dark mode", "category": "preferences"}'

# Recall memories
curl -X POST http://localhost:4318/v1/recall \
  -H "Content-Type: application/json" \
  -d '{"query": "user preferences"}'

# Check stats
curl http://localhost:4318/v1/stats

Connect your terminals

bash integrations/claude-code/setup.sh
bash integrations/gemini-cli/setup.sh
bash integrations/codex/setup.sh

Each script installs MCP access and managed continuity rules, so resume_context fires automatically in fresh windows.

Index existing conversations

bun run src/cli.ts ingest --source all
bun run seed:continuity
bun run src/cli.ts doctor

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Web UI

Dashboard — total count, category distribution, health score, and growth trends at a glance.

Search Workbench — hybrid search with topic tag filtering, 4 retrieval profiles, Skills browser, and asset management.

Knowledge Graph — interactive force-directed visualization with semantic bridges revealing cross-domain connections.

bun run src/ui-server.ts
# → http://localhost:4317

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Core Capabilities

Access & Setup

| Capability | Description | |---|---| | CC Plugin | Install in Claude Code with one command — no manual config | | Shared Index | One LanceDB store for Claude Code, Codex, and Gemini CLI | | Dual Interface | MCP (stdio) for CLI tools + HTTP API for custom agents | | One-Click Setup | Integration scripts install MCP access and continuity rules |

Recall & Continuity

| Capability | Description | |---|---| | Hybrid Retrieval | 6-channel: vector + BM25 + L0/L1/L2 multi-vector + KG graph (PPR) | | 4 Retrieval Profiles | default, writing, debug, fact-check — tuned for different tasks | | Session Continuity | checkpoint_session + resume_context (full/light/summary modes) with repo-state guard | | Session Distiller | 3-layer conversation compression: microcompact → LLM summary → knowledge extraction | | Conversation Import | Import from Claude Code, Claude.ai, ChatGPT, Slack, and plaintext | | Topic Tags | Intra-scope topic partitioning — auto-detected, filterable in search |

Memory Lifecycle & Governance

| Capability | Description | |---|---| | Memory Evolution | Supersede chains, decay scoring, LLM importance, consolidation, archival | | Smart Promotion | Evidence → durable memory with conflict guards, merge resolution, and audit trail | | Privacy Tiers | 4-tier (ephemeral / private / durable / shared) with cascade forgetting | | Admission Control | Write-time gating: noise filter, importance floor, dedup, rate limiting | | Memory Lint | Contradiction, duplicate, stale, and orphan detection with health score | | Offline Consolidation | dream command: clustering, merging, pruning of accumulated memories |

Reasoning & Structure

| Capability | Description | |---|---| | Knowledge Graph | Entity relation graph with PPR algorithm for multi-hop questions | | Constructive Retrieval | Multi-source candidate expansion + grounded context reconstruction | | Narrative Architecture | 3-layer autobiographical metadata (life-period → general-event → specific-event) | | Skill Memory | Store, retrieve, and promote executable skills from recurring patterns | | Predictive Reminders | Behavioral-signal prediction engine surfaces "you might need this" suggestions | | 6 Categories | profile, preferences, entities, events, cases, patterns — with category-aware merge strategies |

Visibility & Operations

| Capability | Description | |---|---| | Dashboard | Web UI with stats, category distribution, growth trends, and health | | Workflow Observation | Dedicated append-only workflow health records, outside regular memory | | Structured Assets | Pins, briefs, and distilled summaries — not just raw logs | | Data Checkup | Data quality health checks on the memory store (including source health) | | Source Heartbeats | Automatic ingest health tracking per data source with staleness alerts | | Export Graph | Export interactive HTML knowledge graph visualization | | Batch Operations | Store up to 20 memories in a single call with dedup | | Connector Framework | Standard connector-v1 format for external data sources with example adapters |

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New in v2.1: Philosophy-Informed Memory

v2.0 built the operational memory platform; v2.1 added philosophy-informed memory behavior.

Five upgrades derived from 9 research dimensions in philosophy of memory, each mapped to concrete engineering:

• Emotion-Aware Decay (Affective Memory Theory) — Memories with strong emotional content decay 20-30% slower. Keyword-based emotion detection computes salience (mnemonic significance), which feeds into the Weibull half-life formula and a rebalanced 4-factor evolution score. Zero LLM cost.

• Memory Ethics Layer (Right to Be Forgotten / GDPR Art. 17) — Four privacy tiers (ephemeral / private / durable / shared). Cascade forgetting engine that propagates deletion through KG triples, evolution chains, pin assets, and briefs. Full audit trail. forget_memory MCP tool for agent-driven deletion.

• Autobiographical Narrative (Narrative Identity Theory / Conway's 3-layer model) — Memories are tagged with lifePeriod → generalEvent → specificEvent hierarchy, orthogonal to existing 6 categories. Retrieval pulls narrative siblings. Context rendering groups by life period. Rule-based tagger with EN+CN support.

• Constructive Retrieval (Simulation Theory / Michaelian) — Instead of returning raw stored text, RecallNest now reconstructs context from an expanded candidate set: KG neighbors + evolution chains + cluster members + narrative siblings. Source-map grounded coverage replaces lexical overlap. Contradictions are detected and flagged.

• Predictive Prospective Memory (Mental Time Travel / Tulving) — Heuristic prediction engine that surfaces "you might need this" reminders from behavioral signals: stale checkpoint open loops, corrected workflow observations, high-frequency dormant memories, and uncovered query topics. Zero LLM cost. Auto-expire in 7 days if unaccepted.

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New in v2.2: Retrieval Quality Hardening

v2.1 added philosophy-informed behavior; v2.2 closes the last three engine-layer gaps identified by a frontier research scan (ACC, PI-LLM, TSM).

• Memory Confidence Meta-tags (ACC / Dual-Process UQ) — Each memory now carries structured ConfidenceMetadata (score, reliability tier: direct / inferred / hearsay). Auto-assigned from source on write (manual = 0.9, agent = 0.7, conversation_import = 0.5). Retrieval scores are weighted by confidence. resume_context tags low-confidence items with [低置信].

• Interference Detection + Active Forgetting Gate (PI-LLM / SleepGate) — Semantic cluster detection identifies groups of near-duplicate memories competing for retrieval. Enhanced RIF keeps only top-K (default 3) per cluster; extras are demoted 50% instead of removed. Write-time pre-warning: when a scope accumulates ≥5 high-similarity active memories, the weakest is flagged pending_review. data_checkup reports interference density.

• Temporal Validity Windows (TSM / TiMem / Zep) — store_memory accepts validUntil (expiration) and eventTime (when the event actually happened). search_memory supports validAt (point-in-time query) and includeExpired (demote 80% instead of hide). Auto-GC applies 2× decay acceleration to expired memories.

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New in v2.3: Connector Ecosystem + Source Health

v2.2 hardened retrieval quality; v2.3 opens RecallNest to external data sources with a standard connector framework and operational health monitoring.

• Connector-v1 Standard (GB-2) — A JSON format (ConnectorOutputV1) that any external script can produce. Obsidian vaults, emails, RSS feeds, log files — normalize once, ingest through the full dedup/embed/extract pipeline. See [docs/connector-spec.md](docs/connector-spec.md) for the specification and [connectors/examples/](connectors/examples/) for adapter skeletons (email, logs, RSS).

• Obsidian Vault Ingestion (GB-1) — First-party Obsidian connector: scans .md files, extracts frontmatter + wikilinks, maps folder structure to tags. One command: lm ingest --obsidian /path/to/vault.

• Source Health Monitoring (GB-3) — Every connector ingest writes a heartbeat to data/source-heartbeat.json. data_checkup flags stale sources (>7d warning, >30d error). doctor --ci shows a per-source heartbeat summary with human-readable age.

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Architecture

┌──────────────────────────────────────────────────────────┐
│                     Client Layer                          │
├──────────┬──────────┬──────────┬──────────────────────────┤
│ Claude   │ Gemini   │ Codex    │ Custom Agents / curl     │
│ Code     │ CLI      │          │                          │
└────┬─────┴────┬─────┴────┬─────┴──────┬──────────────────┘
     │          │          │            │
     └──── MCP (stdio) ───┘     HTTP API (port 4318)
                │                       │
                ▼                       ▼
┌──────────────────────────────────────────────────────────┐
│                   Integration Layer                       │
│  ┌─────────────────────┐  ┌────────────────────────────┐ │
│  │  MCP Server         │  │  HTTP API Server           │ │
│  │  41 tools           │  │  21 endpoints              │ │
│  └─────────┬───────────┘  └──────────┬─────────────────┘ │
└────────────┼─────────────────────────┼───────────────────┘
             └──────────┬──────────────┘
                        ▼
┌──────────────────────────────────────────────────────────┐
│                     Core Engine                           │
│                                                           │
│  ┌────────────┐  ┌────────────┐  ┌─────────────────────┐ │
│  │ Retriever  │  │ Classifier │  │ Context Composer     │ │
│  │ (vector +  │  │ (6 cats)   │  │ (resume_context)     │ │
│  │ BM25 + RRF)│  │            │  │                      │ │
│  └────────────┘  └────────────┘  └──────────────────────┘ │
│  ┌────────────┐  ┌────────────┐  ┌─────────────────────┐ │
│  │ Decay      │  │ Conflict   │  │ Capture Engine       │ │
│  │ Engine     │  │ Engine     │  │ (evidence → durable) │ │
│  │ (Weibull)  │  │ (audit +   │  │                      │ │
│  │            │  │  merge)    │  │                      │ │
│  └────────────┘  └────────────┘  └──────────────────────┘ │
└──────────────────────────┬───────────────────────────────┘
                           ▼
┌──────────────────────────────────────────────────────────┐
│                    Storage Layer                          │
│  ┌─────────────────────┐  ┌────────────────────────────┐ │
│  │ LanceDB             │  │ Jina Embeddings v5         │ │
│  │ (vector + columnar) │  │ (1024-dim, task-aware)     │ │
│  └─────────────────────┘  └────────────────────────────┘ │
└──────────────────────────────────────────────────────────┘

Internal Design

• L0 / L1 / L2 Dynamic Folding — every memory stores 3 granularity layers (one-liner / bullet summary / full content); retrieval dynamically selects which layer to return based on relevance score and token budget
• Weibull Decay + Emotion Modulation — memories decay along a parametric Weibull curve; importance scores modulate the half-life, and emotional salience extends it further (up to 30%)
• Vector Pre-filter + LLM Dedup — 90% of dedup decisions use cheap cosine similarity (>= 0.92); only borderline cases invoke LLM judgment, keeping costs low without sacrificing accuracy
• Category-Aware Merge Strategies — profile and preferences use merge-on-conflict (latest wins); events and cases use append-only (history preserved)
• Display Score vs Elimination Score — dual-track retrieval: tier floor prevents core memories from ever dropping out, while decay boost lets fresh memories surface temporarily without permanently displacing stable ones

> Full architecture deep-dive: [docs/architecture.md](docs/architecture.md)

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Interfaces

RecallNest serves two interfaces:

• MCP — for Claude Code, Gemini CLI, and Codex (native tool access)
• HTTP API — for custom agents, SDK-based apps, and any HTTP client

Agent framework examples

Examples live in [integrations/examples/](integrations/examples/):

| Framework | Example | Language | |-----------|---------|----------| | [Claude Agent SDK](integrations/examples/claude-agent-sdk/) | memory-agent.ts | TypeScript | | [OpenAI Agents SDK](integrations/examples/openai-agents-sdk/) | memory-agent.py | Python | | [LangChain](integrations/examples/langchain/) | memory-chain.py | Python |

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MCP Tools (42 tools)

| Tool | Description | |------|-------------| | workflow_observe | Store an append-only workflow observation outside regular memory; accepts idempotencyKey for retry-safe writes | | workflow_health | Inspect workflow observation health or show a degraded-workflow dashboard | | workflow_evidence | Build an evidence pack for a workflow primitive | | store_memory | Store a durable memory for future windows | | store_workflow_pattern | Store a reusable workflow as durable patterns memory | | store_case | Store a reusable problem-solution pair as durable cases memory | | promote_memory | Explicitly promote evidence into durable memory | | promote_scan | Scan recent evidence and auto-promote qualifying memories into durable storage | | list_conflicts | List or inspect promotion conflict candidates | | audit_conflicts | Summarize stale/escalated conflict priorities | | escalate_conflicts | Preview or apply conflict escalation metadata | | resolve_conflict | Resolve a sto

…

Source & license

This open-source MCP server is cataloged on AgentStack and links to its original source — we do not rehost the code.

• Author: AliceLJY
• Source: AliceLJY/recallnest
• License: MIT

Install and usage instructions live in the source repository linked above.