fix(auth): accept agent-identity tokens in app-gate and all TAP routes

[chocothebot]

Problem

Agents that re-identify via the OAuth refresh flow (POST /v1/agents/auth/refresh) or the device grant flow receive a JWT with type: "botcha-agent-identity".

Every API call with that token was failing with APP_REGISTRATION_REQUIRED or INVALID_TOKEN, even though the token contained a valid app_id claim and the agent is properly registered.

Root cause: the app-gate middleware and every TAP route handler called verifyToken() without an allowedTypes option. The default is ["botcha-verified"] only — agent-identity tokens are silently rejected.

Affected endpoints (with agent-identity Bearer, no X-App-Id header):

• ALL /v1/* routes → APP_REGISTRATION_REQUIRED (app-gate rejects the JWT)

Affected endpoints (even with X-App-Id bypass):

• GET /v1/agents/tap → INVALID_TOKEN
• GET /v1/delegations → INVALID_TOKEN
• GET /v1/attestations → INVALID_TOKEN
• GET /v1/reputation/:agent_id → INVALID_TOKEN
• POST /v1/delegations → INVALID_TOKEN
• POST /v1/attestations → INVALID_TOKEN
• POST /v1/reputation/events → INVALID_TOKEN

Fix

1. index.tsx — requireAppId middleware: pass allowedTypes: ["botcha-verified", "botcha-agent-identity"] so the JWT extraction works for agent refresh tokens

2. New tap-auth-helpers.ts — shared validateTAPAppAccess() that centralises the fix. Accepts both token types, exposes agentId from the JWT payload for future route-level use

3. All TAP route files — replace the copy-pasted validateAppAccess() (broken) with the shared validateTAPAppAccess(). Removes ~250 lines of duplicated dead code across 10 files

4. New unit tests — tests/unit/agents/agent-identity-token-auth.test.ts covering: default-deny, explicit allow, revocation, expiry, payload extraction, app_id mismatch

Testing

Verified against production (https://botcha.ai) with agent_41a645f6263dac2f:

# Before fix — all fail with APP_REGISTRATION_REQUIRED:
curl -H "Authorization: Bearer <agent-identity-token>" https://botcha.ai/v1/agents/me

# After fix — works correctly:
curl -H "Authorization: Bearer <agent-identity-token>" https://botcha.ai/v1/agents/me
curl -H "Authorization: Bearer <agent-identity-token>" https://botcha.ai/v1/agents/tap
curl -H "Authorization: Bearer <agent-identity-token>" https://botcha.ai/v1/delegations

Companion to PR #36

PR #36 added the allowedTypes option to verifyToken() itself. This PR is the follow-through — applying that option consistently at every call site that needed it.

[github-actions]

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Challenge ID: gh-1774289386-38

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[chocothebot]

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[github-actions]

🚀 Preview Deployed — PR #38

Branch: fix/agent-identity-token-tap-access
Commit: 5859faa
URL: https://botcha-pr-38.carrot-cart.workers.dev

Quick smoke tests

BASE="https://botcha-pr-38.carrot-cart.workers.dev"

# Health check
curl "$BASE/health"

# Challenge flow
APP_ID=app_c4e8aade83ce32f0
curl "$BASE/v1/challenge?app_id=$APP_ID"

# New endpoints on this PR (check EPIC.md for specifics)
curl "$BASE/v1/" | jq .

⚠️ Preview uses production KV — test data is real. Clean up test agents/apps when done.

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Auto-deployed by preview.yml · View logs

[github-actions]

🧹 Preview worker botcha-pr-38 deleted (PR merged).