Spec Driven Development
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
作者による説明(英語の原文)
HYTHE — coordination bus + shared truth for AI agent fleets — self-hosted MCP server + stdio bridge.
この3つを1つのスコアにまとめることはしません。意見、測定、人気はそれぞれ別のものだからです。
このサーバーのやさしい解説はまだ書いていません。以下はレジストリから読み取った事実です。
使っているAIアプリを選んで、設定をコピーしてください。
HYTHE_AGENT_ID, HYTHE_AGENT_KEY_FILE, HYTHE_AGENT_AUTH_MODE, API_KEY, MCP_HOST, MCP_PORT「秘密」と表示された値は、あなたのアカウントの鍵です。絶対に人に教えたり、チャットに貼り付けたりしないでください。
必要なもの
どのアプリを使っていますか?
上でアプリを選んでください。選んだアプリを覚えておくので、次からはボタンに「…にインストール」と表示されます。
Claude Desktop → Settings → Developer → Edit Config を開き、claude_desktop_config.json にこれを貼り付けます
{
"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"
}
}
}
}ターミナルでこれを実行します
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/mcp動かす前に、空欄の値を入力してください。
プロジェクトの .cursor/mcp.json、または ~/.cursor/mcp.json に貼り付けます
{
"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"
}
}
}
}ブラウザがアプリを開いてよいか確認し、そのあとアプリが設定を表示して確認を求めます。キーの値は空欄のままなので、自分で入力してください。
プロジェクトの .vscode/mcp.json に貼り付けます
{
"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"
}
}
}
}ブラウザがアプリを開いてよいか確認し、そのあとアプリが設定を表示して確認を求めます。キーの値は空欄のままなので、自分で入力してください。
これはパソコンで動くサーバーですが、ChatGPTがつなげるのはインターネット上のサーバーだけです。ほかのアプリを選んでください。
選んだアプリは、この端末のCookieに保存されます。アカウントは不要です。
HYTHE_AGENT_KEY_FILE envHYTHE_AGENT_AUTH_MODE envMCP_HOST envMCP_PORT envこの設定は、作者のレジストリ登録情報から作成しています。READMEと違う場合は、READMEに従ってください。
パソコンで動くサーバーです。インストールすると、ツール一覧がAIアプリに表示されます。
誰でも見られる情報をチェックしており、コードは読んでいません。当てはまらない項目は数に入れていません。 · 2026年11月6日にチェック
レジストリ名はドメイン hythe.dev で確認済みです(レジストリがドメインの所有を確認しています)
このリポジトリはまだGitHubから読み取っていません
このリポジトリはまだGitHubから読み取っていません
これはパソコンで動くため、インターネット上のエンドポイントはありません
パソコンで動き、代わりにローカルの設定を使います
パソコンで動くサーバーです。ツール一覧を読み取れるのは、インターネット上のエンドポイントがある場合だけです
レジストリでこのカテゴリにある有効なすべてのサーバーと比較しています。スターは、公開者がリポジトリの所有者である場合だけ数えます。
当てはまる基本チェック1項目のうち1項目に合格しました。コードは読んでいません。キーやトークンを追加する前に、サーバーがどんなアクセスを求めているかを確認し、必要な権限だけを持つキーを使ってください。
入力が必要なもの:HYTHE_AGENT_ID, API_KEY
あなたのパソコンで動きます。必要なときにAIアプリが起動し、データは作者のサーバーを通りません(サーバー自体がオンラインサービスを呼び出す場合を除きます)。
GitHubリポジトリの最終更新は–、最新バージョン(0.2.0)がレジストリに届いたのは2 か月前です。
Claude Desktop、Claude Code、Cursor、VS CodeなどのMCP対応アプリで使えます。パソコンにNode.jsも必要です。
同じカテゴリには:Spec Driven Development, Remote Desktop Commander, debuff
同じカテゴリで、ほかの作者が作ったサーバー。スターの多い順。
カードの見方:★ GitHubスターi3つの柱:レビュー · チェック · 利用状況i更新=最新バージョンをレジストリに公開した日i
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.
Let coding agents play, test and tune your 2D web game: live state, explained errors, replays, fuzz.
作者のリポジトリから書かれたとおりにコピーしたものです。PopNx MCPは内容を確認・推奨していません。HTML、画像、スクリプトは取り除いています。リンクはこのサイトの外へ移動します。
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