Mnestis

The memory layer for software. One command turns a codebase into architecture intelligence that humans and AI can use immediately.

Website: mnestis.vercel.app · npm: mnestis · GitHub: bitreonx/Mnestis

Documentation · Install · Graphs · Languages · AI Pack v1 · INFERNO Benchmarks · Contributing

Star us on GitHub if Mnestis helps your workflow — it helps other developers discover local-first codebase memory. github.com/bitreonx/Mnestis

npx mnestis .

Install: npm package is mnestis — not the squatted Mnestis name. See INSTALL.md.

Local-first. No cloud. No API keys. No guesswork.

---

What is Mnestis?

Mnestis is a local-first codebase memory tool for AI coding assistants (Cursor, Claude Code, Codex). It replaces ad-hoc grepping and one-off tools like Graphify with a single npx mnestis . command that builds:

• Repository DNA — compressed architecture fingerprint (.mentis/project.dna.json)
• Dependency graph — domains, flows, capabilities, critical paths
• AI Pack v1 — versioned JSON contract agents can reason from
• MCP server — get_dna, search, impact_analysis for Cursor and Claude
• Fable mindset — working discipline distilled from Fable 5 traces

Use npx mnestis launch . --platform cursor to build memory and auto-install steering rules so agents actually read DNA instead of skipping it.

Keywords: codebase analysis · architecture intelligence · Cursor MCP · Claude Code skill · local-first · AI agent memory · dependency graph · developer tools

---

Project status

Mnestis is pre-launch OSS — we are polishing before growth, not pretending to be finished.

Surface	Status	Notes
CLI	Stable	npx mnestis ., audit, supernova, pack, serve, mcp, memory
HTML report	Stable	Dashboard-aligned design, offline shareable
AI Pack v1 + MCP	Stable	Built for Claude Code, Cursor, Codex
Fable Mindset (New Gen)	Stable	fable-mindset skill + discipline rules; Mnestis discipline measures the gap
Shared Agent Memory	Stable	memory build, serve, stats, budget, shard — pre-sharded .Mnestis/*.memory.json for subagents
Memory Engine v3	Stable	SQLite + hybrid retrieval, sessions, encrypted sync — .Mnestis/engine/
Dashboard	Preview	Cockpits work; layout & panels still refining — help welcome

We dogfood Mnestis on this repo. Creator marketing comes after dashboard polish — not before.

Claude Code first: Mnestis setup --platform claude → skill + CLAUDE.md context. See Claude OSS application brief if you are evaluating ecosystem impact.

New Gen — the Fable Mindset: Mnestis distills the working discipline observed across 4,665 public Fable 5 traces into an installable skill, so Opus 4.8, Sonnet — any agent — adopts Fable-grade habits: reason before acting, verify before claiming done, recover with method. It ports the habits, not the weights — no model retraining, no capability transplant. Measure your own gap with Mnestis discipline --opus.

---

The 30-second pitch

What: Mnestis scans your repository, builds a dependency graph, discovers domains, capabilities, and user journeys, then writes structured memory to .Mnestis/. It produces a dashboard, a shareable HTML report, and AI Pack v1 — a versioned JSON contract agents can reason from without opening the UI.

Why: AI coding tools and new teammates both fail the same way: they grep random files instead of reading architecture. Mnestis gives every consumer the same ground truth — once, locally, on every build.

Who: Vibecoders who need the product story. AI orchestrators feeding Claude, Cursor, or Trae. Human developers who want architecture, smells, and copy-ready repair context in one cockpit.

---

Showcase — four artifacts, one build

Every npx Mnestis . run produces the same intelligence in four shapes. The legend Dashboard · Report · AI JSON appears in every chrome so you always know which one you are looking at.

Terminal → Memory · one command writes DNA, agent context, an HTML report, and shareable SVG cards

Verified results · 100% task accuracy on Express & NestJS — reproducible via Mnestis-bench

These cards are produced by Mnestis snapshot — drop them straight into a README or PR.

	Artifact	You get	Best for
🖥️	Terminal	npx Mnestis . → .Mnestis/ memory	CI, first scan, refreshing DNA
📊	Dashboard	Mnestis ui → /vibe · /ai · /coder cockpits	Preview — interactive exploration (community-driven)
📄	Report	report/index.html · ?mode=vibe|ai|coder	Stable — stakeholder demos, async review, shareable HTML
🤖	AI JSON	Mnestis pack · /json/:repoId · /copilot/pack/:repoId	Claude, Cursor, Trae — copy or HTTP, no UI required

npx Mnestis . && npx Mnestis ui    # dashboard at localhost:5173
# report: .Mnestis/report/index.html or report/index.html
npx Mnestis pack --section=summary --pretty

---

Quick start

# 1. Analyze the repo (writes .Mnestis/)
npx Mnestis .

# 2. Open the interactive dashboard
npx Mnestis ui

# 3. Serve memory for agents (optional)
npx Mnestis serve
# → http://localhost:4000/copilot/pack/local

# 4. Export AI Pack v1
npx Mnestis pack --section=summary --pretty

# 5. Shared Agent Memory (subagents load shards, not raw source)
npx Mnestis memory build .
npx Mnestis memory serve    # → localhost:4000/domain/auth

Expected outputs in .Mnestis/: project.dna.json, memory.json, agent_context.json, context/*.md, report/index.html

---

Outputs at a glance

Artifact	Command / URL	Audience	Use case
Dashboard	Mnestis ui → localhost:5173	You + team	Preview — interactive exploration (panels & layout in progress)
Report	report/index.html	Stakeholders	Stable — async review, demos, shareable HTML (?mode=vibe|ai|coder)
AI JSON	Mnestis pack · /json/:repoId · /copilot/pack/:repoId	Claude, Cursor, Trae	Copy-paste structured context, repair prompts, score + issues
DNA	.Mnestis/project.dna.json	Any agent	Compressed repo DNA — @-mention first
MCP	Mnestis mcp	IDE agents	15+ tools + 11 resources via Model Context Protocol
Sync	Mnestis sync	CI + local dev	Codegraph-style auto-rebuild on file changes
Wrap	Mnestis wrap -- <cmd>	AI agents	RTK-style token-compressed command output

Legend: Every dashboard view and the report header show Dashboard · Report · AI JSON so you always know which artifact you are looking at.

---

The three modes

Modes are routes, not toggles. The URL is canonical.

Mode	Route	For	One-liner
Vibe	/vibe/:repoId/story	Vibecoders, PMs, founders	Product story, journeys, capabilities — no raw JSON
AI	/ai/:repoId/home	Claude, Cursor, Trae users	AI Pack v1, repairs, verify — agent-first
Coder	/coder/:repoId/overview	Human developers	Architecture, flows, code map, smells, copilot

See docs/modes.md for deep links and keyboard map.

---

Dashboard tour

Section	Coder route	What it does
Overview	/coder/:id/overview	Health score (explained), issues, quick navigation
Architecture	/coder/:id/architecture	Systems, domains, graph, smells
Flows	/coder/:id/flows	Execution paths + user journeys
Code Map	/coder/:id/code	File map + tech stack
History	/coder/:id/history	Build history, timeline, risk heatmap
AI Context	/coder/:id/ai	Copilot, context docs, JSON pack

---

AI Pack v1

Single versioned JSON contract built once in @mnestis/core, used by UI, CLI, serve, and report.

npx Mnestis pack --section=issues --mode=ai -o .Mnestis/ai-pack.json
curl -s localhost:4000/copilot/pack/local?section=score | jq .version
# → "1.0.0"

Claude / Cursor / Trae recipe:

1. Run npx Mnestis .
2. Run npx Mnestis setup --platform claude (Claude Code skill + CLAUDE.md)
3. Paste npx Mnestis pack --section=summary --mode=ai output, or
4. Point the agent at http://localhost:4000/copilot/pack/local, or
5. Open http://localhost:5173/json/local and click Copy AI Pack v1
6. Use Mnestis wrap -- npm test to feed token-compressed output back to the agent

Full spec: docs/ai-pack.md

---

Verified benchmarks

Headline numbers from Mnestis-bench/results/VERIFIED.md — reproducible locally:

Repo	Accuracy	Build	Tokens	Compression
Express (small)	100%	500 ms	8,901	19.9×
NestJS (medium)	100%	73 s	212,366	4.8×

npm run bench:regression   # fixture regression gate
npm run bench:express      # Express fixture
npm run bench:fresh:express  # clean .Mnestis + re-score
npm run bench:ai-eval      # AI blind eval

Windows PowerShell — clean cache before re-benchmarking:

Remove-Item -Recurse -Force Mnestis-bench\repos\express\.Mnestis -ErrorAction SilentlyContinue
npm run bench:express

---

Architecture

flowchart TB
  subgraph ingest [Ingest]
    SCAN[Scanner · 52 languages] --> PARSE[Lexical parser]
    PARSE --> GRAPH[Knowledge graph]
  end
  subgraph analyze [Analyze]
    GRAPH --> MEM[.Mnestis/ memory]
  end
  subgraph output [Outputs]
    MEM --> UI[Dashboard]
    MEM --> RPT[Report]
    MEM --> PACK[AI Pack · MCP]
    MEM --> MD[context/*.md + graphs]
  end

Loading

Every build writes Mermaid diagrams into .Mnestis/context/ — see docs/GRAPHS.md for the full catalog and docs/LANGUAGES.md for the 50-language parsing pipeline.

Details: docs/architecture.md

---

CLI reference

Command	Description
Mnestis . / Mnestis build	Analyze repo, write .Mnestis/
Mnestis ui	Launch dashboard (localhost:5173)
Mnestis serve	REST API (localhost:4000)
Mnestis mcp	MCP stdio server for IDEs
Mnestis pack	Print AI Pack v1 (--section, --mode, -o)
Mnestis report	Generate report/index.html (--report-path report.html, --open)
Mnestis sync	Auto-rebuild graph on file changes (local index)
Mnestis wrap -- <cmd>	Token-compressed command output for AI agents
Mnestis ask "…"	Architecture copilot
Mnestis setup	Install AGENTS.md, Cursor rules, Claude Code + Fable discipline skills
Mnestis explain	Plain-language repo summary
Mnestis score	Health score breakdown
Mnestis flows	List execution flows
Mnestis impact	Blast radius analysis

Mnestis --help   # full flag list

---

Shared runtime

MnestisRuntime in packages/core is the single source of truth for REST (Mnestis serve) and MCP (Mnestis mcp):

• Parallel load of memory, graph, and BM25 search index
• Typed AgentEnvelope responses
• Actionable errors (NOT_BUILT, NOT_FOUND, GRAPH_UNAVAILABLE)
• Protocol parity — same queries via HTTP or MCP

MCP tools (15)

query_graph · get_dna · explain_repo · onboard · get_node · get_neighbors · shortest_path · impact_analysis · list_domains · list_flows · list_capabilities · search · get_health · review_diff · refresh_memory

---

Contributing

See docs/contributing.md. PRs welcome.

Roadmap

docs/roadmap.md

---

License · Security · Code of Conduct

• MIT
• Security policy
• Code of Conduct