Add Claude Code smart routing - #255
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Extend smart routing to Claude Code on top of the shared engine. `ucode claude --enable-smart-routing` routes the root session (via ANTHROPIC_MODEL) and subagents (via a PreToolUse hook that rewrites the Agent tool's model) through the workspace task_v1 router. - smart_routing/claude_routing.py + claude_hooks.py: Claude cc-scenario arms (claude-opus-4-8, claude-sonnet-5, harness "claude"), both offered unconditionally per the frozen task_v1 menu; settings.json hook shape. - claude agent + CLI: --enable/--disable-smart-routing, hidden claude-router-hook, reads the shared smart_routing_enabled state key so one opt-in covers codex and claude. Co-authored-by: Isaac
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What & why
Extends smart routing to Claude Code, on top of the shared smart-routing engine introduced in the base PR #251.
ucode claude --enable-smart-routingopts a workspace into AI Gateway model routing for Claude Code:task_v1router picks betweenclaude-opus-4-8andclaude-sonnet-5; the pick is pinned viaANTHROPIC_MODEL.PreToolUsehook (matcherAgent|Task) rewrites the spawned subagent'smodelviahookSpecificOutput.updatedInput;SessionStart/SubagentStarthooks drive a canary + audit trail.--disable-smart-routingsurgically removes only ucode's own hooks and clears artifacts.The two Claude arms are offered to the router unconditionally, matching the frozen
task_v1cc-scenario menu (which rejects an under-offered request); if an arm isn't servable it fails open to the family default. Reads the sharedsmart_routing_enabledstate key, so one opt-in covers both Codex and Claude Code.Stacking
Stacked on #251 (base branch
codex-intelligent-routing), which carries the shared engine + rename. This PR only adds Claude-specific files and wiring; it touches no Codex routing logic. Review #251 first — once it merges this will be rebased ontomain.How do you know it works?
test_claude_routing.py: thecc-menu request shape, the missing-arm short-circuit, router-pick → workspace-id resolution, fail-open on router error, the subagentmodelrewrite (AgentandTasktool names), and the decision→SubagentStart audit reconciliation.test_agent_claude.py: enable/disable, hook installation intoucode-settings.json, theANTHROPIC_MODELroot pin, and provider-mode suppression of routing hooks.test_e2e_user_agentfailure needs a live gateway and fails identically on the base branch.Not yet validated with a live/liteswap Claude Code session, and routing only activates once the
task_v1router servesharness: "claude"in the target workspace.This pull request and its description were written by Isaac.