Spec Driven Development
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Beschreibung vom Entwickler (englisches Original)
HYTHE — coordination bus + shared truth for AI agent fleets — self-hosted MCP server + stdio bridge.
Diese drei werden nie zu einer Punktzahl zusammengefasst: Meinungen, Messungen und Beliebtheit sind verschiedene Dinge.
Für diesen Server haben wir noch keine Zusammenfassung in einfacher Sprache geschrieben. Unten stehen die Fakten, die wir aus der Registry gelesen haben.
Wähle die KI-App, die du nutzt, und kopiere die Einstellungen.
HYTHE_AGENT_ID, HYTHE_AGENT_KEY_FILE, HYTHE_AGENT_AUTH_MODE, API_KEY, MCP_HOST, MCP_PORTAls geheim markierte Werte sind Schlüssel zu deinem Konto. Gib sie nie weiter und füge sie nie in einen Chat ein.
Du brauchst
Welche App nutzt du?
Wähle oben deine App. Wir merken sie uns, damit der Button beim nächsten Mal „In … installieren“ anzeigt.
Öffne Claude Desktop → Settings → Developer → Edit Config und füge dies in claude_desktop_config.json ein
{
"mcpServers": {
"hythe": {
"command": "npx",
"args": [
"-y",
"@hythe/mcp"
],
"env": {
"HYTHE_AGENT_ID": "your-value",
"HYTHE_AGENT_KEY_FILE": "your-value",
"HYTHE_AGENT_AUTH_MODE": "your-value",
"API_KEY": "your-value",
"MCP_HOST": "your-value",
"MCP_PORT": "your-value"
}
}
}
}Führe das in deinem Terminal aus
claude mcp add hythe --env HYTHE_AGENT_ID=your-value --env HYTHE_AGENT_KEY_FILE=your-value --env HYTHE_AGENT_AUTH_MODE=your-value --env API_KEY=your-value --env MCP_HOST=your-value --env MCP_PORT=your-value -- npx -y @hythe/mcpTrag die leeren Werte ein, bevor du ihn startest.
In .cursor/mcp.json in deinem Projekt oder in ~/.cursor/mcp.json einfügen
{
"mcpServers": {
"hythe": {
"command": "npx",
"args": [
"-y",
"@hythe/mcp"
],
"env": {
"HYTHE_AGENT_ID": "your-value",
"HYTHE_AGENT_KEY_FILE": "your-value",
"HYTHE_AGENT_AUTH_MODE": "your-value",
"API_KEY": "your-value",
"MCP_HOST": "your-value",
"MCP_PORT": "your-value"
}
}
}
}Dein Browser fragt, ob er die App öffnen darf, dann zeigt die App die Einstellungen und bittet dich um Bestätigung. Schlüsselwerte bleiben leer, damit du sie selbst einträgst.
In .vscode/mcp.json in deinem Projekt einfügen
{
"servers": {
"hythe": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@hythe/mcp"
],
"env": {
"HYTHE_AGENT_ID": "your-value",
"HYTHE_AGENT_KEY_FILE": "your-value",
"HYTHE_AGENT_AUTH_MODE": "your-value",
"API_KEY": "your-value",
"MCP_HOST": "your-value",
"MCP_PORT": "your-value"
}
}
}
}Dein Browser fragt, ob er die App öffnen darf, dann zeigt die App die Einstellungen und bittet dich um Bestätigung. Schlüsselwerte bleiben leer, damit du sie selbst einträgst.
Dieser Server läuft auf deinem Computer, und ChatGPT kann sich nur mit Servern im Internet verbinden. Wähle eine andere App.
Deine Auswahl bleibt in einem Cookie auf diesem Gerät; kein Konto nötig.
HYTHE_AGENT_KEY_FILE envHYTHE_AGENT_AUTH_MODE envMCP_HOST envMCP_PORT envDiese Einstellungen werden aus dem Registry-Eintrag des Entwicklers erzeugt. Wenn in der README etwas anderes steht, folge der README.
Läuft auf deinem Computer; die Tool-Liste erscheint nach der Installation in deiner KI-App.
Wir prüfen Informationen, die jeder sehen kann; den Code haben wir nicht gelesen. Checks, die nicht zutreffen, werden nicht mitgezählt. · Geprüft am 6. Nov. 2026
Der Registry-Name wurde über die Domain hythe.dev bestätigt (die Registry prüft, wem die Domain gehört)
Dieses Repo haben wir noch nicht von GitHub gelesen
Dieses Repo haben wir noch nicht von GitHub gelesen
Dieser Server läuft auf deinem Computer; es gibt keinen Endpunkt im Internet
Läuft auf deinem Computer und nutzt stattdessen lokale Einstellungen
Läuft auf deinem Computer; Tool-Listen können wir nur von Endpunkten im Internet lesen
Verglichen mit allen aktiven Servern dieser Kategorie in der Registry. Sterne zählen nur, wenn dem Herausgeber das Repo gehört.
Er hat 1 von 1 zutreffenden Basischecks bestanden. Den Code haben wir nicht gelesen. Bevor du einen Schlüssel oder Token hinzufügst, sieh nach, welche Zugriffe der Server verlangt, und nutze einen Schlüssel, der nur die Berechtigungen hat, die du brauchst.
Das musst du eintragen: HYTHE_AGENT_ID, API_KEY
Er läuft auf deinem Computer. Deine KI-App startet ihn bei Bedarf, und die Daten laufen nicht über die Server des Entwicklers (außer der Server ruft selbst einen Onlinedienst auf).
Das GitHub-Repo wurde zuletzt – geändert, und die neueste Version (0.2.0) kam vor 2 Monaten in die Registry.
Apps, die MCP unterstützen, etwa Claude Desktop, Claude Code, Cursor und VS Code. Außerdem brauchst du Node.js auf deinem Computer.
In derselben Kategorie: Spec Driven Development, Remote Desktop Commander, LickityClick
Server derselben Kategorie von anderen Entwicklern, sortiert nach Sternen.
So liest du eine Karte:★ GitHub-SterneiDrei Säulen: Bewertungen · Checks · NutzungiAktualisiert = neueste Version in der Registry veröffentlichti
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.
Create, edit and track LickityClick short links, campaigns and click stats from your AI assistant.
Unverändert aus dem Repo des Entwicklers übernommen. PopNx MCP hat den Inhalt weder geprüft noch empfiehlt es ihn. HTML, Bilder und Skripte wurden entfernt. Links führen von dieser Website weg.
A coordination bus + shared truth for your agent fleet. Self-hosted, two-component setup: a dockerized server plus a thin stdio bridge for your MCP clients.
HYTHE is an MCP server that lets multiple AI coding agents — Claude Code, Codex, Cursor, custom harnesses — share state, preserve context across sessions, and coordinate with each other. It is not another memory store. Its differentiators:
replace-current), and get_current_observation resolves the chain server-side — so readers get the newest non-superseded state. Conflict handling is implemented: checkpoint is branch-preserving CAS — concurrent writers branch rather than overwrite, and conflicts surface as heads, never silently resolved (contract-tested; see the evidence ledger).| Doc | What it covers |
|---|---|
| Quickstart | Clean machine → two coordinating agents in ~15 minutes |
| Concepts | One current truth, messaging lifecycle, resume/checkpoint, honest security model |
| Checkpoint / resume v3 | Current-head pointer, reconciliation, record / patch, the v3 read model, and the one-time adoption step for scopes written before v3 |
| ACP SPEC | The coordination protocol, versioned (1.0.0) |
| Tutorial | Annotated transcript of a real Claude Code ↔ Codex review loop from the original Engram deployment |
| Tool compatibility map | The 20-tool v1 surface; every retired tool and its exact replacement |
| Backup & restore | Tested SQLite backup/restore/compaction runbook |
| Agent credential operator | Offline issuance, attestation, promotion, rotation, and revocation |
| Private-residue adjudication | Hash-bound, owner-approved disposition of ambiguous historical rows |
| SQLite physical sanitation | Verified offline VACUUM and no-clobber promotion after logical cleanup |
| Pavilion production | Pinned deployment, readiness, shutdown, canary, and rollback contract |
Version 0.2.0. This source tree and package define the reviewed 0.2.0 release. Version 0.2.0 preserves 0.1.7's dual-proof agent authorization, exact-mailbox/private-payload containment, bounded related-context discovery, latency-SLO recovery and the offline adjudicator, and adds checkpoint / resume resultVersion: 3: an explicit current-head pointer per scope, a reconcile operation that folds live heads into one survivor and resolves divergent values causally, append-only verified fact/loop versions, a read model that only promotes values proven on the accepted lineage, and record / patch operations on the pointed head. Every v1 / v2 request and result shape is frozen; v3 is opt-in per call, so a 0.1.7 client keeps working against a 0.2.0 server. The dependency tree moved to Express 5, clearing two moderate qs advisories. This release runs on the reference production host since 2026-09-05. All 0.2.0 rollout configurations pin @hythe/mcp@0.2.0; verify that the registry returns that exact version before production use. The predecessor @tomcat65/engram-mcp and io.github.tomcat65/engram remain available as compatibility history and are never unpublished. See CHANGELOG.md and the v3 guide.
House rule: every claim in these docs must trace to a test or a measurement (see the evidence ledger below). Claims that don't are bugs.
| Claim | Evidence | Source | Date |
|---|---|---|---|
| Tree green, full gates | Source and clean installed-package gates cover 49 Vitest files (530 passed, 2 skipped, 6 explicit todos), 107 migration checks, 43 release-tree checks, 31 agent-kit checks, zero production npm audit findings, registry validation, and an isolated Docker start/readiness/MCP/WebSocket/graceful-shutdown canary. | .github/workflows/ci.yml, tests/, src/migrations/, clients/agent-kit/tests/test-setup.sh, scripts/verify-hythe-release-tree.test.mjs, scripts/verify-packed-consumer.mjs | 2026-08-14 |
| Compaction identity fails closed | Startup and post-compaction hooks reject missing, conflicting, or invalid identity; the bridge binds acting tools and message-resource recipients to the configured exact lane before any HTTP request. | clients/agent-kit/tests/test-setup.sh, tests/contract-bridge-identity.test.ts | 2026-08-13 |
| Exact mailboxes stay isolated | Houston/Hythe, case variants, display metadata, legacy identity history, cross-tenant poisoning, suffix handles, lifecycle changes, supersession, HTTP, and ENG-4 authorship have negative isolation coverage. | tests/contract-message-identity-isolation.test.ts, tests/contract-eng4-p0.test.ts | 2026-08-13 |
| Private message bodies stay out of shared graph surfaces | Historical, oversized, malformed, alias-linked, relation-linked, imported, exported, searched, graphed, logged, and restored payload paths are covered; hidden children do not leak through counts. | tests/contract-message-payload-isolation.test.ts, tests/contract-data-payload-isolation.test.ts, tests/contract-log-confidentiality.test.ts | 2026-08-13 |
| Cleanup is offline and fail-closed | Migration 007, owner-approved adjudication, and physical sanitation are dry-run/plan-first, bind execution to reviewed database and decision evidence, require verified no-clobber artifacts, refuse unresolved custody, and preserve rollback state. | src/migrations/007-private-message-residue.mjs, src/migrations/private-message-residue-adjudication.mjs, src/migrations/vacuum-sanitized-database.mjs, docs/ | 2026-08-14 |
| Per-agent authority is server-derived | The base key proves deployment/tenant access; a separate protected-file hya1 credential proves the exact agent. Required mode rejects stripped proof, mismatched identity, insufficient scope, revoked credentials, and stale WebSocket sessions. | src/agent-auth/, tests/contract-agent-auth-foundation.test.ts, tests/contract-agent-auth-server.test.ts, tests/contract-agent-key-client.test.ts | 2026-08-14 |
| Install and discovery surfaces agree | CLI and registry surfaces require an exact lane identity and expose only a protected per-agent key-file path plus an explicit authorization mode; tools and resource templates served through HTTP match the stdio bridge path. | tests/contract-cli.test.ts, tests/contract-agent-key-client.test.ts, tests/contract-mcp-resources-http.test.ts, scripts/verify-hythe-release-tree.test.mjs | 2026-08-14 |
| Current head is explicit, never guessed | The pointer advances only from the pointed head; stale parents branch without becoming current; a pointer at a non-live snapshot fails closed; snapshot rows are immutable by trigger. 33 contract tests. | tests/contract-eng4-h1-head-pointer.test.ts | 2026-09-03 |
| Versions and coverage are exact and verified | Every ledger tuple gets exactly one disposition; the startup backfill is all-or-nothing and idempotent; a bidirectional parity verifier fails closed on any missing, extra or mismatched row. 32 contract tests. | tests/contract-eng4-h2-version-foundation.test.ts | 2026-09-03 |
| Reconciliation is CAS-bound and causal | Exact live-head set and pointer are compare-and-set; every non-survivor head is retired (never deleted); divergent values resolve only by bound accept, reject or lineage reject; the record is payload-bound and re-verified on replay and read. 34 contract tests. | tests/contract-eng4-h3-reconcile.test.ts | 2026-09-04 |
| The v3 read model promotes only proven values | currentFacts / openLoops come only from verified versions on the accepted lineage with provenance; everything else is accounted as divergent or legacy with closed coverage. 29 contract tests. | tests/contract-eng4-h4-read-model.test.ts | 2026-09-04 |
| record / patch cannot promote stale state | Only the pointed head is admitted (conflict otherwise); state is materialized from the hash-verified payload; each payload is read once per call; snapshot resources serve exactly the verified bytes. 21 contract tests, four review rounds. | tests/contract-eng4-h5-record-patch.test.ts | 2026-09-04 |
| Express 5 keeps the HTTP contract | A bodiless or wrong-content-type request is handled like an empty JSON body on every parsed route, never a framework 500; production audit reports zero findings. | tests/contract-express5-body-contract.test.ts, .github/workflows/ci.yml run 33878587010 | 2026-09-04 |
| Production migration verified on a copy first | The v3 schema and backfill were exercised against a copy of the production database on the production host before cutover; the live cutover took 17 s with row counts identical to the verified cold backup. | docs/PAVILION-PRODUCTION.md; operator log engram-prod/releases/hythe-74a324c-cutover-20260905T005551Z.log on the host | 2026-09-05 |
docker compose up, then the @hythe/mcp stdio bridge per MCP client; first-run wizard stores the API key in a protected .env and prints secret-free file-referencing config for Claude Code / Codex / Cursor / Claude Desktop; optional namespaced (demo-*) demo seed on an otherwise empty DB.resultVersion: 3: an explicit current-head pointer, reconcile to fold heads and resolve divergent values, verified fact/loop versions with provenance, and record / patch on the pointed head — see the v3 guide.The published npm package does not install a transformer engine by default. Without one, HYTHE still provides deterministic 384-dimension token-hash vectors plus lexical ranking; it does not download a model or create a model cache. @xenova/transformers@2.17.2 is an optional peer for operators who deliberately provide it from their own audited dependency root.
The Docker image keeps semantic behavior stable through a separate, locked /opt/hythe-transformers runtime. Its startup preflight loads the configured Xenova/all-MiniLM-L6-v2 q8 model and requires one finite 384-dimension embedding before the server starts. When SQLITE_VEC_ALLOW_REMOTE_MODELS=false, the configured SQLITE_VEC_CACHE_DIR must already contain that model. Do not switch between transformer and hash embeddings on a populated vector index: retain the same provider/model/dimensions or rebuild the vector index first.
Apache-2.0