refactor: simplify timeout to single CLAUDE_TIMEOUT (default 600s)

Remove firstByteTimeout, adaptive tier algorithm, and MODEL_TIMEOUT_TIERS.
Claude tool-use causes 30s-5min pauses in token streams, making fine-grained
timeouts unreliable — they repeatedly killed valid requests. A single generous
timeout (10 min, matching LiteLLM/OpenAI SDK defaults) is simpler and correct.

Breaking: CLAUDE_FIRST_BYTE_TIMEOUT env var removed, default timeout changed
from 300s to 600s. Bump to v3.3.0.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
2026-04-04 09:46:12 +10:00
co-authored by Claude Opus 4.6
parent afe0c6e1be
commit 3843ec8fe6
5 changed files with 20 additions and 82 deletions
+2 -3
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@@ -1,6 +1,6 @@
# OCP — Open Claude Proxy
> **Status: Stable (v3.2.1)** — Feature-complete. Bug fixes only.
> **Status: Stable (v3.3.0)** — Feature-complete. Bug fixes only.
> **Already paying for Claude Pro/Max? Use your subscription as an OpenAI-compatible API — $0 extra cost.**
@@ -242,8 +242,7 @@ If you installed OCP before v3.1.0, the auto-start service used names that OpenC
|----------|---------|-------------|
| `CLAUDE_PROXY_PORT` | `3456` | Listen port |
| `CLAUDE_BIN` | *(auto-detect)* | Path to claude binary |
| `CLAUDE_TIMEOUT` | `300000` | Overall request timeout (ms) |
| `CLAUDE_FIRST_BYTE_TIMEOUT` | `90000` | Base first-byte timeout (ms) |
| `CLAUDE_TIMEOUT` | `600000` | Request timeout (ms, default: 10 min) |
| `CLAUDE_MAX_CONCURRENT` | `8` | Max concurrent claude processes |
| `CLAUDE_MAX_PROMPT_CHARS` | `150000` | Prompt truncation limit (chars) |
| `CLAUDE_SESSION_TTL` | `3600000` | Session expiry (ms, default: 1 hour) |
+1 -1
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@@ -2,7 +2,7 @@
"id": "ocp",
"name": "OCP Commands",
"description": "Slash commands for the OpenClaw Proxy — /ocp usage, /ocp settings, /ocp health, etc.",
"version": "3.2.2",
"version": "3.3.0",
"configSchema": {
"type": "object",
"additionalProperties": false,
+1 -1
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@@ -1,6 +1,6 @@
{
"name": "ocp",
"version": "3.2.2",
"version": "3.3.0",
"description": "Slash commands for the OpenClaw Proxy",
"main": "index.js",
"type": "module",
+1 -1
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@@ -1,6 +1,6 @@
{
"name": "openclaw-claude-proxy",
"version": "3.2.2",
"version": "3.3.0",
"description": "OCP (Open Claude Proxy) — use your Claude Pro/Max subscription as an OpenAI-compatible API for any IDE. Works with Cline, OpenCode, Aider, Continue.dev, OpenClaw, and more.",
"type": "module",
"bin": {
+15 -76
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@@ -1,30 +1,19 @@
#!/usr/bin/env node
/**
* openclaw-claude-proxy v2.5.0 — OpenAI-compatible proxy for Claude CLI
* openclaw-claude-proxy — OpenAI-compatible proxy for Claude CLI
*
* Translates OpenAI chat/completions requests into `claude -p` CLI calls,
* letting you use your Claude Pro/Max subscription as an OpenClaw model provider.
*
* v2.5.0:
* - Sliding-window circuit breaker: uses time-windowed failure rate instead of
* consecutive-count, preventing multi-agent burst scenarios from tripping the
* breaker too aggressively. Half-open state allows configurable probe requests.
* - Graduated backoff: cooldown doubles on each re-open (capped at 5min),
* resets fully on success.
* - Health endpoint now exposes per-model breaker state and sliding window stats.
* - Increased default timeout tiers for Opus/Sonnet to handle large agent prompts.
*
* v2.4.0:
* - Per-model circuit breaker: consecutive timeouts temporarily mark a model as degraded
* - Adaptive first-byte timeout: scales by model tier + prompt size
* - Structured JSON logging for key events (easier to parse/alert on)
* - On-demand spawning (no pool), session management, full tool access
* Timeout design: single CLAUDE_TIMEOUT (default 600s / 10 min).
* No separate first-byte or idle timeout — Claude tool-use causes long pauses
* in the token stream (30s-5min) that make fine-grained timeouts unreliable.
* This matches LiteLLM, OpenAI SDK, and other major LLM proxies.
*
* Env vars:
* CLAUDE_PROXY_PORT — listen port (default: 3456)
* CLAUDE_BIN — path to claude binary (default: auto-detect)
* CLAUDE_TIMEOUT — per-request timeout in ms (default: 300000)
* CLAUDE_FIRST_BYTE_TIMEOUT — base first-byte timeout in ms (default: 90000)
* CLAUDE_TIMEOUT — per-request timeout in ms (default: 600000)
* CLAUDE_ALLOWED_TOOLS — comma-separated tools to allow (default: expanded set)
* CLAUDE_SKIP_PERMISSIONS — "true" to bypass all permission checks (default: false)
* CLAUDE_SYSTEM_PROMPT — system prompt appended to all requests
@@ -89,8 +78,7 @@ function resolveClaude() {
// Settings marked with `let` can be changed at runtime via PATCH /settings.
const PORT = parseInt(process.env.CLAUDE_PROXY_PORT || "3456", 10);
const CLAUDE = resolveClaude();
let TIMEOUT = parseInt(process.env.CLAUDE_TIMEOUT || "300000", 10);
let BASE_FIRST_BYTE_TIMEOUT = parseInt(process.env.CLAUDE_FIRST_BYTE_TIMEOUT || "90000", 10);
let TIMEOUT = parseInt(process.env.CLAUDE_TIMEOUT || "600000", 10);
const PROXY_API_KEY = process.env.PROXY_API_KEY || "";
const SKIP_PERMISSIONS = process.env.CLAUDE_SKIP_PERMISSIONS === "true";
const ALLOWED_TOOLS = (process.env.CLAUDE_ALLOWED_TOOLS ||
@@ -358,28 +346,13 @@ function messagesToPrompt(messages) {
return result;
}
// Model tier multipliers for first-byte timeout.
// Opus is much slower to produce first token, especially with large contexts.
let MODEL_TIMEOUT_TIERS = {
"opus": { base: 150000, perPromptChar: 0.00050 }, // 150s base + ~50s per 100k chars
"sonnet": { base: 120000, perPromptChar: 0.00050 }, // 120s base + ~50s per 100k chars
"haiku": { base: 45000, perPromptChar: 0.00010 }, // 45s base + ~10s per 100k chars
};
// Model tier — used for logging only (no timeout logic).
function getModelTier(cliModel) {
if (cliModel.includes("opus")) return "opus";
if (cliModel.includes("haiku")) return "haiku";
return "sonnet";
}
function computeFirstByteTimeout(cliModel, promptLength) {
const tier = MODEL_TIMEOUT_TIERS[getModelTier(cliModel)];
const adaptive = tier.base + Math.floor(promptLength * tier.perPromptChar);
// Use whichever is larger: adaptive calculation or BASE_FIRST_BYTE_TIMEOUT (env override)
const timeout = Math.max(adaptive, BASE_FIRST_BYTE_TIMEOUT);
return Math.min(timeout, Math.max(TIMEOUT - 5000, 10000));
}
// ── Spawn claude CLI (shared setup) ─────────────────────────────────────
// Resolves session logic, builds CLI args, spawns the process, and sets up
// timeouts. Returns context object or throws synchronously.
@@ -439,7 +412,6 @@ function spawnClaudeProcess(model, messages, conversationId) {
activeProcesses.add(proc);
const t0 = Date.now();
const firstByteTimeoutMs = computeFirstByteTimeout(cliModel, prompt.length);
let gotFirstByte = false;
let cleaned = false;
@@ -447,7 +419,6 @@ function spawnClaudeProcess(model, messages, conversationId) {
if (cleaned) return;
cleaned = true;
clearTimeout(overallTimer);
clearTimeout(firstByteTimer);
stats.activeRequests--;
}
@@ -461,7 +432,6 @@ function spawnClaudeProcess(model, messages, conversationId) {
function markFirstByte() {
if (!gotFirstByte) {
gotFirstByte = true;
clearTimeout(firstByteTimer);
console.log(`[claude] first-byte model=${cliModel} elapsed=${Date.now() - t0}ms`);
}
}
@@ -471,27 +441,17 @@ function spawnClaudeProcess(model, messages, conversationId) {
proc.stdin.end();
recordModelRequest(cliModel, prompt.length);
logEvent("info", "claude_spawned", { model: cliModel, promptChars: prompt.length, firstByteTimeout: firstByteTimeoutMs, tier: getModelTier(cliModel), session: conversationId ? conversationId.slice(0, 12) + "..." : "none" });
logEvent("info", "claude_spawned", { model: cliModel, promptChars: prompt.length, timeout: TIMEOUT, tier: getModelTier(cliModel), session: conversationId ? conversationId.slice(0, 12) + "..." : "none" });
// First-byte timeout
const firstByteTimer = setTimeout(() => {
if (!gotFirstByte && !cleaned) {
stats.timeouts++;
recordModelError(cliModel, true);
breakerRecordTimeout(cliModel);
logEvent("error", "first_byte_timeout", { model: cliModel, timeoutMs: firstByteTimeoutMs, promptChars: prompt.length });
try { proc.kill("SIGTERM"); } catch {}
setTimeout(() => { try { proc.kill("SIGKILL"); } catch {} }, 5000);
}
}, firstByteTimeoutMs);
// Overall request timeout
// Single request timeout — no separate first-byte timer.
// Claude tool-use causes long pauses in the token stream (30s-5min),
// making first-byte/idle timeouts unreliable. One generous timeout is simpler and correct.
const overallTimer = setTimeout(() => {
if (!cleaned) {
stats.timeouts++;
recordModelError(cliModel, true);
breakerRecordTimeout(cliModel);
logEvent("error", "request_timeout", { model: cliModel, timeoutMs: TIMEOUT });
logEvent("error", "request_timeout", { model: cliModel, timeoutMs: TIMEOUT, elapsed: Date.now() - t0 });
try { proc.kill("SIGTERM"); } catch {}
setTimeout(() => { try { proc.kill("SIGKILL"); } catch {} }, 5000);
}
@@ -931,31 +891,18 @@ async function handleStatus(_req, res) {
//
// Tunable keys and their types/ranges:
const SETTINGS_SCHEMA = {
timeout: { type: "number", min: 30000, max: 600000, unit: "ms", desc: "Overall request timeout" },
firstByteTimeout: { type: "number", min: 15000, max: 300000, unit: "ms", desc: "Base first-byte timeout" },
timeout: { type: "number", min: 30000, max: 1800000, unit: "ms", desc: "Request timeout (default: 600s)" },
maxConcurrent: { type: "number", min: 1, max: 32, unit: "", desc: "Max concurrent claude processes" },
sessionTTL: { type: "number", min: 60000, max: 86400000, unit: "ms", desc: "Session idle expiry" },
maxPromptChars: { type: "number", min: 10000, max: 1000000, unit: "chars", desc: "Prompt truncation limit" },
"tiers.opus.base": { type: "number", min: 30000, max: 600000, unit: "ms", desc: "Opus base first-byte timeout" },
"tiers.opus.perChar": { type: "number", min: 0, max: 0.01, unit: "ms/char", desc: "Opus per-char timeout addition" },
"tiers.sonnet.base": { type: "number", min: 30000, max: 600000, unit: "ms", desc: "Sonnet base first-byte timeout" },
"tiers.sonnet.perChar": { type: "number", min: 0, max: 0.01, unit: "ms/char", desc: "Sonnet per-char timeout addition" },
"tiers.haiku.base": { type: "number", min: 15000, max: 300000, unit: "ms", desc: "Haiku base first-byte timeout" },
"tiers.haiku.perChar": { type: "number", min: 0, max: 0.01, unit: "ms/char", desc: "Haiku per-char timeout addition" },
};
function getSettings() {
return {
timeout: { value: TIMEOUT, ...SETTINGS_SCHEMA.timeout },
firstByteTimeout: { value: BASE_FIRST_BYTE_TIMEOUT, ...SETTINGS_SCHEMA.firstByteTimeout },
maxConcurrent: { value: MAX_CONCURRENT, ...SETTINGS_SCHEMA.maxConcurrent },
sessionTTL: { value: SESSION_TTL, ...SETTINGS_SCHEMA.sessionTTL },
maxPromptChars: { value: MAX_PROMPT_CHARS, ...SETTINGS_SCHEMA.maxPromptChars },
tiers: {
opus: { base: MODEL_TIMEOUT_TIERS.opus.base, perPromptChar: MODEL_TIMEOUT_TIERS.opus.perPromptChar },
sonnet: { base: MODEL_TIMEOUT_TIERS.sonnet.base, perPromptChar: MODEL_TIMEOUT_TIERS.sonnet.perPromptChar },
haiku: { base: MODEL_TIMEOUT_TIERS.haiku.base, perPromptChar: MODEL_TIMEOUT_TIERS.haiku.perPromptChar },
},
};
}
@@ -967,16 +914,9 @@ function applySettingUpdate(key, value) {
switch (key) {
case "timeout": TIMEOUT = value; break;
case "firstByteTimeout": BASE_FIRST_BYTE_TIMEOUT = value; break;
case "maxConcurrent": MAX_CONCURRENT = value; break;
case "sessionTTL": SESSION_TTL = value; break;
case "maxPromptChars": MAX_PROMPT_CHARS = value; break;
case "tiers.opus.base": MODEL_TIMEOUT_TIERS.opus.base = value; break;
case "tiers.opus.perChar": MODEL_TIMEOUT_TIERS.opus.perPromptChar = value; break;
case "tiers.sonnet.base": MODEL_TIMEOUT_TIERS.sonnet.base = value; break;
case "tiers.sonnet.perChar": MODEL_TIMEOUT_TIERS.sonnet.perPromptChar = value; break;
case "tiers.haiku.base": MODEL_TIMEOUT_TIERS.haiku.base = value; break;
case "tiers.haiku.perChar": MODEL_TIMEOUT_TIERS.haiku.perPromptChar = value; break;
default: return `${key}: not implemented`;
}
logEvent("info", "setting_changed", { key, value });
@@ -1138,7 +1078,6 @@ const server = createServer(async (req, res) => {
auth: authStatus,
config: {
timeout: TIMEOUT,
firstByteTimeout: BASE_FIRST_BYTE_TIMEOUT,
maxConcurrent: MAX_CONCURRENT,
sessionTTL: SESSION_TTL,
circuitBreaker: "disabled",
@@ -1252,7 +1191,7 @@ server.listen(PORT, "127.0.0.1", () => {
console.log(`Architecture: on-demand spawning (no pool)`);
console.log(`Models: ${MODELS.map((m) => m.id).join(", ")}`);
console.log(`Claude binary: ${CLAUDE}`);
console.log(`Timeout: ${TIMEOUT}ms (base first-byte: ${BASE_FIRST_BYTE_TIMEOUT}ms, adaptive by model/prompt) | Max concurrent: ${MAX_CONCURRENT}`);
console.log(`Timeout: ${TIMEOUT / 1000}s | Max concurrent: ${MAX_CONCURRENT}`);
console.log(`Circuit breaker: disabled`);
console.log(`Tools: ${SKIP_PERMISSIONS ? "all (skip-permissions)" : ALLOWED_TOOLS.join(", ")}`);
console.log(`Sessions: TTL=${SESSION_TTL / 1000}s`);