Every new session starts from zero. Your AI forgets everything it learned.
LeanCTX persists sessions, project knowledge, dependency graphs, and agent handoffs across restarts. The Session Survival Engine ensures structured recovery queries survive context compaction, so no critical context is lost mid-task. Facts are stored with confidence scores and automatically decay over time. Knowledge rooms organize information by topic, and structured handoff bundles allow seamless agent-to-agent transitions with full context preservation.
Your Agent Forgets Everything
Every time you start a new chat, your AI agent forgets everything: architecture decisions, bug patterns, API conventions, what was tried and failed. You repeat yourself constantly, wasting time and tokens.
ctx_knowledge persists project knowledge across sessions. Ask once, remember forever.
5 tools
Persistent Sessions
Session state survives restarts with checkpoints, compaction, and bounded growth.
Project Knowledge
Facts, patterns, contradictions, and bug memory with confidence scoring and decay policies.
Multi-Edge Dependency Graphs
Property Graph with multi-edge BFS traversal across imports, calls, exports, type_ref, and tested_by edges with weighted impact scoring.
Agent Handoffs
Structured handoff bundles with diary, tasks, and cost attribution across agents.
Session Survival Engine
Structured recovery queries survive context compaction - critical decisions, open tasks, and architecture context are preserved automatically.
Context Continuity Protocol (CCP)
A persistence protocol ensuring sessions, knowledge, and context survive across agent boundaries.
14 MCP tools
LeanCTX persists sessions, project knowledge, dependency graphs, and agent handoffs across restarts. The Session Survival Engine ensures structured recovery queries survive context compaction, so no critical context is lost mid-task. Facts are stored with confidence scores and automatically decay over time. Knowledge rooms organize information by topic, and structured handoff bundles allow seamless agent-to-agent transitions with full context preservation.
ctx_session Cross-session memory (CCP). Actions: load (restore ~400 tok), save, status, task, finding, decision, reset, list, cleanup, snapshot, restore, resume, profile (context profiles), role (governance), budget (limits), slo (observability), diff (compare sessions), verify (output verification stats), episodes (episodic memory), procedures (procedural memory).
ctx_knowledge Persistent project knowledge across sessions (facts, patterns, history). Supports recall modes, embeddings, feedback, and typed relations.
ctx_graph Unified code graph. Actions: build (index), related (connected files), symbol (def/usages), impact (blast radius), status (stats), enrich (add commits+tests+knowledge), context (task-based query), diagram (Mermaid deps/calls).
ctx_impact Graph-based impact analysis. Actions: analyze|chain|build|status.
ctx_architecture Graph-based architecture analysis. Actions: overview|clusters|layers|cycles|entrypoints|module.
ctx_callgraph Unified call graph query. direction=callers|callees for a symbol. Returns file/symbol/line edges.
ctx_callers Find all symbols that call a given function/method. Deprecated alias for ctx_callgraph direction=callers.
ctx_callees Find all functions/methods called by a given symbol. Deprecated alias for ctx_callgraph direction=callees.
ctx_agent Multi-agent coordination (shared message bus + persistent diaries). Actions: register (join with agent_type+role), post (broadcast or direct message with category), read (poll messages), status (update state: active|idle|finished), handoff (transfer task to another agent with summary), sync (overview of all agents + pending messages + shared contexts), diary (log discovery/decision/blocker/progress/insight — persisted across sessions), recall_diary (read agent diary), diaries (list all agent diaries), list, info.
ctx_task Multi-agent task orchestration. Actions: create|update|list|get|cancel|message|info.
ctx_handoff Context Ledger Protocol (hashed, deterministic, local-first). Actions: create|show|list|pull|clear.
ctx_share Share cached file contexts between agents. Actions: push (share files from your cache to another agent), pull (receive files shared by other agents), list (show all shared contexts), clear (remove your shared contexts).
ctx_compress Context checkpoint for long conversations.
ctx_compress_memory Compress a memory/config file (CLAUDE.md, .cursorrules, etc.) to save tokens on every session start. Preserves code blocks, URLs, paths, headings, tables. Creates .original.md backup.
Every output carries proof
LeanCTX generates proof artifacts for every session: which files were read, what was compressed, which checks passed, and how tokens were spent. This makes AI work auditable, replayable, and trustworthy.
Explore Memory Tools
LeanCTX persists sessions, project knowledge, dependency graphs, and agent handoffs across restarts. The Session Survival Engine ensures structured recovery queries survive context compaction, so no critical context is lost mid-task. Facts are stored with confidence scores and automatically decay over time. Knowledge rooms organize information by topic, and structured handoff bundles allow seamless agent-to-agent transitions with full context preservation.