@houtini/lm - npm Package Compare versions

Comparing version 3.2.3 to 3.2.4

dist/version.d.ts

+/**
+ * The single source of truth for the server version.
+ *
+ * Read from package.json at runtime rather than hardcoded, so the MCP handshake
+ * can never drift from the published version.
+ */
+export declare const SERVER_VERSION: string;

dist/version.js

+import { readFileSync } from 'node:fs';
+/**
+ * The single source of truth for the server version.
+ *
+ * Read from package.json at runtime rather than hardcoded, so the MCP handshake
+ * can never drift from the published version.
+ */
+export const SERVER_VERSION = JSON.parse(readFileSync(new URL('../package.json', import.meta.url), 'utf8')).version;
+//# sourceMappingURL=version.js.map

dist/version.js.map

+{"version":3,"file":"version.js","sourceRoot":"","sources":["../src/version.ts"],"names":[],"mappings":"AAAA,OAAO,EAAE,YAAY,EAAE,MAAM,SAAS,CAAC;AAEvC;;;;;GAKG;AACH,MAAM,CAAC,MAAM,cAAc,GAAW,IAAI,CAAC,KAAK,CAC9C,YAAY,CAAC,IAAI,GAAG,CAAC,iBAAiB,EAAE,MAAM,CAAC,IAAI,CAAC,GAAG,CAAC,EAAE,MAAM,CAAC,CAClE,CAAC,OAAO,CAAC"}

dist/inference-lock.d.ts

@@ -19,5 +19,11 @@ /**
  *   pin a dead holder's lock forever.
+ * - A read failure is classified, not collapsed to "no lock". A GARBLED file (empty or
+ *   non-JSON, e.g. a holder died between create and write) carries no token, so
+ *   token-checked removal can never clear it and it is removed outright. A file we simply
+ *   cannot READ (EACCES/EBUSY/EIO) is not evidence of a dead holder and never authorises
+ *   a steal.
  * - FAIL-OPEN: any fs error, or waiting past the cap, proceeds WITHOUT the lock
  *   rather than hanging a tool call. Serialisation is a throughput optimisation,
- *   never a correctness dependency.
+ *   never a correctness dependency. The deadline is enforced on the steal path too —
+ *   every path out of the acquire loop is bounded.
  *
@@ -24,0 +30,0 @@ * Residual: if a holder is hard-killed and several waiters race to steal in the

dist/inference-lock.js

@@ -19,5 +19,11 @@ /**
  *   pin a dead holder's lock forever.
+ * - A read failure is classified, not collapsed to "no lock". A GARBLED file (empty or
+ *   non-JSON, e.g. a holder died between create and write) carries no token, so
+ *   token-checked removal can never clear it and it is removed outright. A file we simply
+ *   cannot READ (EACCES/EBUSY/EIO) is not evidence of a dead holder and never authorises
+ *   a steal.
  * - FAIL-OPEN: any fs error, or waiting past the cap, proceeds WITHOUT the lock
  *   rather than hanging a tool call. Serialisation is a throughput optimisation,
- *   never a correctness dependency.
+ *   never a correctness dependency. The deadline is enforced on the steal path too —
+ *   every path out of the acquire loop is bounded.
  *
@@ -43,2 +49,9 @@ * Residual: if a holder is hard-killed and several waiters race to steal in the
 // Default cap on how long we'll wait before giving up and proceeding unlocked.
+//
+// This is DELIBERATELY below STALE_MS, and that is not a bug. shouldSteal() ages out a
+// lock on `Date.now() - info.at`, i.e. the age of the LOCK, not how long the current
+// caller has waited — so a caller arriving at an already-stale lock steals it on its
+// first iteration and never consults this cap. Raising it above STALE_MS would only make
+// callers block longer before failing open, which is the wrong direction for a module
+// whose contract is that serialisation is never a correctness dependency.
 const DEFAULT_MAX_WAIT_MS = 6 * 60_000;
@@ -58,10 +71,28 @@ const sleep = (ms) => new Promise((r) => setTimeout(r, ms));
 });
-function readLock() {
+function readLockDetailed() {
+    let raw;
     try {
-        return JSON.parse(readFileSync(LOCK_PATH, 'utf8'));
+        raw = readFileSync(LOCK_PATH, 'utf8');
     }
+    catch (e) {
+        return e.code === 'ENOENT'
+            ? { state: 'missing' }
+            : { state: 'unreadable' };
+    }
+    try {
+        const info = JSON.parse(raw);
+        // A JSON scalar (`null`, `7`, `"x"`) parses fine but is not a lock record.
+        if (!info || typeof info !== 'object')
+            return { state: 'garbled' };
+        return { state: 'ok', info };
+    }
     catch {
-        return null; // missing or garbled
+        return { state: 'garbled' };
     }
 }
+/** Convenience wrapper for the read-only callers that only care about a valid record. */
+function readLock() {
+    const r = readLockDetailed();
+    return r.state === 'ok' ? r.info : null;
+}
 /** Should the given on-disk lock be stolen? Age first (covers PID reuse and
@@ -98,2 +129,16 @@ *  wedged holders), then same-host dead-PID. */
 /**
+ * Remove a lock file that carries no usable token. Unconditional by necessity: there is
+ * nothing to compare against, so `stealIfUnchanged` can never remove it. Without this the
+ * acquire loop retries forever against a file it will not delete.
+ *
+ * The unconditional unlink is safe precisely because it is gated on `garbled` rather than
+ * on any read failure — a lock we merely cannot read is left alone.
+ */
+function removeGarbledLock() {
+    try {
+        unlinkSync(LOCK_PATH);
+    }
+    catch { /* another waiter beat us to it */ }
+}
+/**
  * Acquire the cross-process inference lock. Returns a release function (safe to
@@ -119,3 +164,20 @@ * call more than once; only unlinks if we still own the file). `onWait` is
             const fd = openSync(LOCK_PATH, 'wx'); // atomic: EEXIST if already held
-            writeSync(fd, JSON.stringify({ pid: process.pid, host: HOST, at: Date.now(), token }));
+            // Once the file exists we own the cleanup obligation. A throw from writeSync would
+            // otherwise leak the descriptor AND strand a zero-byte lock that no release and no
+            // exit handler can remove (myToken is not yet set) — which is exactly the garbled
+            // file that used to wedge every other process's acquire loop.
+            try {
+                writeSync(fd, JSON.stringify({ pid: process.pid, host: HOST, at: Date.now(), token }));
+            }
+            catch (writeErr) {
+                try {
+                    closeSync(fd);
+                }
+                catch { /* ignore */ }
+                try {
+                    unlinkSync(LOCK_PATH);
+                }
+                catch { /* ignore */ }
+                throw writeErr;
+            }
             closeSync(fd);
@@ -144,5 +206,19 @@ myToken = token;
             }
-            const info = readLock();
-            if (shouldSteal(info)) {
-                stealIfUnchanged(info?.token);
+            const read = readLockDetailed();
+            // An unreadable file is not evidence of a dead holder, so it must not authorise a
+            // steal. Treat it as held and fall through to the wait/fail-open path.
+            const stealable = read.state === 'garbled' ||
+                read.state === 'missing' ||
+                (read.state === 'ok' && shouldSteal(read.info));
+            if (stealable) {
+                if (read.state === 'garbled')
+                    removeGarbledLock();
+                else if (read.state === 'ok')
+                    stealIfUnchanged(read.info.token);
+                // Bound the steal path too. It previously `continue`d straight past both the
+                // deadline check and the sleep, so any condition that kept re-presenting a
+                // stealable lock span a core forever and never failed open.
+                if (Date.now() - start > maxWaitMs) {
+                    return () => { };
+                }
                 continue; // retry acquire immediately
@@ -149,0 +225,0 @@ }

dist/inference-lock.js.map

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LICENSE

@@ -1,21 +0,202 @@
-MIT License
 
-Copyright (c) 2024 Richard Baxter
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package.json

 {
   "name": "@houtini/lm",
-  "version": "3.2.3",
+  "version": "3.2.4",
   "type": "module",
@@ -12,7 +12,8 @@ "description": "MCP server for local LLMs — connects to LM Studio or any OpenAI-compatible endpoint",
   "scripts": {
-    "test:vllm": "node test-vllm-thinking.mjs",
-    "test:overflow": "node test-context-overflow.mjs",
-    "build": "tsc && node add-shebang.mjs",
+    "test:vllm": "node scripts/test-vllm-thinking.mjs",
+    "test:overflow": "node scripts/test-context-overflow.mjs",
+    "test:lock": "node scripts/verify-inference-lock.mjs",
+    "build": "tsc && node scripts/add-shebang.mjs",
     "dev": "tsc --watch",
-    "shakedown": "node shakedown.mjs",
+    "shakedown": "node scripts/shakedown.mjs",
     "prepublishOnly": "npm run build"
@@ -62,2 +63,4 @@ },
     "dist/**/*",
+    "assets/logo.png",
+    "assets/icon.png",
     "server.json",
@@ -64,0 +67,0 @@ "README.md",

README.md

@@ -0,1 +1,5 @@
+<div align="center">
+  <img src="https://raw.githubusercontent.com/houtini-ai/houtini-lm/main/assets/logo.png" width="120" height="120" alt="Houtini LM" />
+</div>
+
 # @houtini/lm Houtini LM - Save Tokens by Offloading Tasks from Claude Code to Your Local LLM Server (LM Studio / Ollama), Openrouter or a Cloud API
@@ -6,2 +10,3 @@
 [![License: Apache 2.0](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://opensource.org/licenses/Apache-2.0)
+[![Known Vulnerabilities](https://snyk.io/test/github/houtini-ai/houtini-lm/badge.svg)](https://snyk.io/test/github/houtini-ai/houtini-lm)
 
@@ -24,2 +29,18 @@ <p align="center">
 
+## The manual
+
+This README is the overview. The depth lives in focused pages:
+
+| Page | What's in it |
+|---|---|
+| [Getting started](./docs/GETTING-STARTED.md) | Local models from zero: LM Studio or Docker, what small models are good at, which fit your VRAM |
+| [The tools, in depth](./manual/tools.md) | All eight tools: the parameters that matter, reading the footer, the max_tokens floor |
+| [The craft of delegation](./manual/delegation.md) | What to hand off and how to brief it - the verbatim-echo pattern, micro-chunking, reasoning-model budgets |
+| [Troubleshooting](./manual/troubleshooting.md) | Symptom → cause → fix: empty responses, timeouts, context-length 400s, queuing |
+| [LM Studio setup](./docs/SETUP-LMSTUDIO.md) · [Ollama setup](./docs/SETUP-OLLAMA.md) · [vLLM setup](./docs/SETUP-VLLM.md) | Backend guides, each with the traps that cause silent failures |
+| [vLLM backend notes](./docs/VLLM-BACKEND.md) | The deeper operational record: router topology, thinking toggles, token budgets |
+| [CLI mode](./docs/CLI-MODE.md) | Running houtini-lm as a command, not just an MCP server |
+| [Shakedown test](./docs/SHAKEDOWN.md) | The canonical end-to-end check - `npm run shakedown`, or paste the prompt into Claude and watch all eight tools run |
+| [Developer guide](./DEVELOPER.md) | Architecture, contributing, release process |
+
 ## How it works
@@ -48,3 +69,3 @@
 > Setting up a specific backend? Step-by-step guides, each with the traps that cause silent failures:
-> **[LM Studio](./docs/SETUP-LMSTUDIO.md)** (easiest, desktop) · **[vLLM](./docs/SETUP-VLLM.md)** (throughput, tool-calling, long context).
+> **[LM Studio](./docs/SETUP-LMSTUDIO.md)** (easiest, desktop) · **[Ollama](./docs/SETUP-OLLAMA.md)** (two commands, CLI) · **[vLLM](./docs/SETUP-VLLM.md)** (throughput, tool-calling, long context).
 
@@ -373,3 +394,3 @@ ### Claude Code
 
-This runs [`shakedown.mjs`](./shakedown.mjs) — an end-to-end test that exercises seven of the eight tools (`discover` → `list_models` → `chat` → `custom_prompt` → `code_task` → `code_task_files` → `embed`; `stats` is not covered) and prints a summary table with real TTFT, tok/s, token counts, and reasoning-token split for each call. Takes under a minute on a decent rig.
+This runs [`scripts/shakedown.mjs`](./scripts/shakedown.mjs) — an end-to-end test that exercises seven of the eight tools (`discover` → `list_models` → `chat` → `custom_prompt` → `code_task` → `code_task_files` → `embed`; `stats` is not covered) and prints a summary table with real TTFT, tok/s, token counts, and reasoning-token split for each call. Takes under a minute on a decent rig.
 
@@ -393,3 +414,3 @@ Sample output tail:
 
-Want a human-readable quality review rather than just latency numbers? Paste [SHAKEDOWN.md](./SHAKEDOWN.md) into a Claude session that has houtini-lm attached — Claude will drive the seven steps and write you a report on output quality as well as performance.
+Want a human-readable quality review rather than just latency numbers? Paste [SHAKEDOWN.md](./docs/SHAKEDOWN.md) into a Claude session that has houtini-lm attached — Claude will drive the seven steps and write you a report on output quality as well as performance.
 
@@ -488,3 +509,3 @@ ## Think-block handling
 
-All inference uses Server-Sent Events streaming. Tokens arrive incrementally. Since v2.9.0, houtini-lm sends MCP progress notifications on every streamed chunk — including during the thinking phase for reasoning models — which resets the SDK's 60-second client timeout. A 5-minute soft timeout acts as a safety net so a genuinely wedged connection can't hold a tool call open indefinitely; as long as tokens keep flowing, the per-chunk progress keeps the client side alive up to that ceiling.
+All inference uses Server-Sent Events streaming. Tokens arrive incrementally. Since v2.9.0, houtini-lm sends MCP progress notifications on every streamed chunk — including during the thinking phase for reasoning models — which resets the SDK's 60-second client timeout. A 5-minute soft timeout acts as a safety net so a wedged connection can't hold a tool call open indefinitely; as long as tokens keep flowing, the per-chunk progress keeps the client side alive up to that ceiling.
 
@@ -491,0 +512,0 @@ If the connection stalls (no new tokens for an extended period), you get a partial result instead of a timeout error. The footer shows `TRUNCATED` when this happens, and the quality metadata flags it so Claude knows to treat the output with appropriate caution.

server.json

 {
   "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
-  "name": "Houtini LM",
-  "description": "MCP server that connects Claude to any OpenAI-compatible LLM endpoint. Offload routine analysis to a local model and preserve your Claude context window.",
-  "icon": "https://houtini.ai/favicon.ico",
+  "name": "io.github.houtini-ai/lm",
+  "description": "Connect Claude to any OpenAI-compatible LLM endpoint and offload routine work to a local model.",
+  "icons": [
+    {
+      "src": "https://raw.githubusercontent.com/houtini-ai/houtini-lm/main/assets/logo.png",
+      "mimeType": "image/png",
+      "sizes": [
+        "512x512"
+      ]
+    }
+  ],
   "repository": {
@@ -16,7 +24,5 @@ "url": "https://github.com/houtini-ai/lm",
       "version": "3.2.3",
-      "transport": [
-        {
-          "type": "stdio"
-        }
-      ],
+      "transport": {
+        "type": "stdio"
+      },
       "environmentVariables": [
@@ -27,3 +33,3 @@ {
           "isRequired": false,
-          "format": "url"
+          "format": "string"
         },
@@ -30,0 +36,0 @@ {

New alerts

Filesystem access

Supply chain risk

Accesses the file system, and could potentially read sensitive data.

Fixed alerts

Mixed license

License

Package contains multiple licenses.

Improved metrics

Total package byte prevSize

504035

46.17%

Number of package files

24

26.32%

Number of low license alerts

0

-100%

Lines of code

4082

2.61%

Number of lines in readme file

536

4.08%

Worsened metrics

Number of low supply chain risk alerts

23

4.55%

No dependency changes