feat(server): rip out @anthropic-ai/claude-agent-sdk entirely

[mabry1985]

Why

PR 4 — final step of the namesake SDK cutover. Removes @anthropic-ai/claude-agent-sdk from the codebase entirely. The runtime path already routed through @protolabsai/sdk/anthropic-compat (PR #3625, #3626, #3628); this PR closes the loop on the type-level dependency and the inert verify-claude-auth endpoint.

Changes

apps/server/src/lib/sdk-options.ts — inline the agent-SDK type shapes locally instead of importing from @anthropic-ai/claude-agent-sdk. The 1000-line option-builder module now owns the type contract it actually emits (Options, HookCallback, HookCallbackResult, HookCallbackMatcher, PreToolUseHookInput, PostToolUseHookInput, HookEventInput). Field set tracks what we actually populate. The compat layer's runtime translation absorbs any structural differences (proto SDK accepts the wider shapes — see proto-provider.ts adapters).

Also drops the pathToClaudeCodeExecutable field from getBaseOptions() — proto SDK bundles its own CLI binary; there's no path to pin, and the compat layer's runtime ignores the field anyway. The constant CLAUDE_CODE_EXECUTABLE and its fileURLToPath import go with it.

apps/server/src/routes/setup/routes/verify-claude-auth.ts — deleted. The endpoint spawned the Claude Agent SDK to verify direct-Anthropic auth (api key + OAuth flows). Under gateway-first routing (#3619 et al.) there's no Claude auth to verify; the endpoint has been inert for weeks. UI callers (4 sites in setup-view/ and settings-view/api-keys/) will receive a 404 and surface their existing error path — those surfaces are being removed in the upcoming protoCLI first-class provider work, so a stub here would be wasted code.

apps/server/src/routes/setup/index.ts — drop the createVerifyClaudeAuthHandler import and its router registration. Comment explains the deletion.

apps/server/package.json — @anthropic-ai/claude-agent-sdk removed from dependencies. @anthropic-ai/sdk (the bare Anthropic API SDK) stays — different package, used for the analytics path, not the agent loop.

Validation

• npm run typecheck clean across all 21 workspaces
• vitest run in apps/server: 3431 passed, 23 skipped, 0 failed
• grep -rn "@anthropic-ai/claude-agent-sdk" apps/server/src libs/ returns only comments referring to the historical migration — no live imports

Still-open follow-ups

• protoCLI fix: remove duplicate roleRegistryService on main #256 — widen the @protolabsai/sdk/anthropic-compat types so consumers don't need any casts. Today's casts in claude-provider.ts (mcpServers, outputFormat) and the local type shims in sdk-options.ts can collapse into a single import type { ... } from '@protolabsai/sdk/anthropic-compat' after the upstream widens.
• protomaker — UI surfaces in setup-view/steps/claude-setup-step.tsx, setup-view/steps/providers-setup-step.tsx, and settings-view/api-keys/hooks/use-api-key-management.ts still call api.setup.verifyClaudeAuth. Those are getting reworked as part of the protoCLI first-class provider work (separate PR): a new protoCLI onboarding step + settings tab + autodetect + the Claude-specific surfaces retire alongside.

After this lands

The codename "Automaker" stays internal, but the agent SDK underneath is now fully @protolabsai/sdk. Every model dispatch through ClaudeProvider or ProtoProvider runs proto's CLI under the hood, routed via the gateway. Anthropic SDK dep is gone.

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Run ID: e9265f45-f723-489e-a5be-4128e498f588

📥 Commits

Reviewing files that changed from the base of the PR and between 581bf0f and 1c0fefc.

⛔ Files ignored due to path filters (1)

• package-lock.json is excluded by !**/package-lock.json

📒 Files selected for processing (4)

• apps/server/package.json
• apps/server/src/lib/sdk-options.ts
• apps/server/src/routes/setup/index.ts
• apps/server/src/routes/setup/routes/verify-claude-auth.ts

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch feat/rip-anthropic-sdk-final-step

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[github-actions]

Code Review — ? finding(s)

Async review running parallel to CodeRabbit. Findings are advisory; not all are merge blockers.

protoLabs Code Review Report

• Generated: 2026-05-22T22:43:37Z
• Git head: 1098868c1cc53e3cfbf966f3c2904ccfd1193ede
• Features mapped: 3
• Findings: 0

No findings recorded.