sync: note claude code gateway fix

sync/CURRENT.md

@@ -10,7 +10,23 @@
 
 ## Session Status
 
-### Latest Verified State — 2026-05-12 22:15 Europe/Berlin
+### Latest Verified State — 2026-05-12 22:55 Europe/Berlin
+
+- Claude Code full CLI smoke now reaches the local Gateway Companion and public Gateway reliably:
+  - Local Companion: `127.0.0.1:11435`.
+  - Claude env: `ANTHROPIC_BASE_URL=http://127.0.0.1:11435`, `ANTHROPIC_API_KEY=gateway`, default Sonnet `claude-sonnet-4-6`.
+  - Verified command returned exact clean result `claude-debug10-ok`.
+  - Dashboard rows show caller `claude-code-companion`, models `claude-sonnet-4-6` and `claude-haiku-3`, tokens/cost/latency tracked.
+- Fixes applied during verification:
+  - Companion clamps Anthropic `max_tokens` to Gateway limit `16384`.
+  - Companion emits Anthropic-compatible SSE without double-writing headers.
+  - Companion sanitizes OpenAI-style assistant markers and prompt echo before returning to Claude Code.
+  - Companion message IDs now include a random suffix to avoid concurrent `generate_session_title` vs main-request collisions.
+  - Gateway live route bypasses response-cache for agentic callers containing `claude-code`, `codex`, or `copilot`; these are still tracked and compression metadata is still recorded.
+- Important boundary:
+  - Claude Code text/CLI path is now usable through Gateway and tracked.
+  - Full Anthropic tool-use fidelity is still adapter-level, not native Anthropic API parity; current bridge flattens tool requests to text for Gateway routing.
+  - Small Claude Code smoke prompts often show `compression_mode=none:none` because there is no useful token reduction on tiny inputs; larger Codex test already proved `ctxlean-rtk` savings.
 
 - Secure bridge architecture is now in place for Gateway-routed subscription access:
   - MacStudio Codex bridge listens on `127.0.0.1:3253`.

sync/history/2026-05-12-claude-code-gateway-fix.md

@@ -0,0 +1,39 @@
+# 2026-05-12 — Claude Code Gateway Fix
+
+## Summary
+
+Claude Code CLI now reaches the local Gateway Companion and the public LLM Gateway.
+
+Verified smoke:
+
+- Local endpoint: `ANTHROPIC_BASE_URL=http://127.0.0.1:11435`
+- Model: `claude-sonnet-4-6`
+- Result: `claude-debug10-ok`
+- Gateway dashboard caller: `claude-code-companion`
+- Dashboard tracked Sonnet and Haiku rows with tokens, cost, latency, and compression metadata.
+
+## Fixes Applied
+
+- Companion:
+  - Anthropic `/v1/messages` translation clamps `max_tokens` to Gateway limit `16384`.
+  - Streaming Anthropic responses no longer double-write HTTP headers.
+  - OpenAI-style assistant markers and prompt echo are sanitized before returning to Claude Code.
+  - Message IDs now include a random suffix to prevent concurrent Claude Code internal requests from colliding.
+
+- Gateway:
+  - Response-cache bypass is enabled for agentic callers containing `claude-code`, `codex`, or `copilot`.
+  - These callers are still logged and compression metadata is still recorded.
+  - This avoids stale semantic-cache answers for coding agents.
+
+## Verification Evidence
+
+- Public health: `/api/dashboard/health` returned `ok`, database `connected`.
+- Latest dashboard rows after the fix:
+  - `claude-code-companion`, `claude-sonnet-4-6`, `tokens_in=138`, `tokens_out=19`, latency about `441ms`.
+  - `claude-code-companion`, `claude-haiku-3`, title/internal request tracked separately.
+
+## Boundaries
+
+- Claude Code text/CLI path is usable through Gateway and tracked.
+- Full native Anthropic tool-use parity is not complete; the Companion still flattens tool-related content into text for Gateway routing.
+- Small smoke prompts often show `compression_mode=none:none`; this is expected when there are too few tokens to compress usefully.