feat(training-agent): createAdcpServer scaffold + framework migration plan#2561
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- Export getWebhookSigningKey() from webhooks.ts so the future
createAdcpServer({ webhooks: { signerKey } }) config can reuse the
existing Ed25519 key without duplicating key management.
- Add FRAMEWORK_MIGRATION.md documenting the 10 blockers surfaced
during a first-pass attempt (response-shape vs framework wrap,
McpServer CJS/ESM dual-resolution, VERSION_UNSUPPORTED /
dry_run / stateless-HTTP task-store edge cases, 30+ custom tools
outside AdcpToolMap, test-harness _requestHandlers path, ...) and
the staged 4-PR plan to unwind them.
No runtime behavior change — this commit just lays the groundwork.
The framework migration proper (replacing ~3,300 lines of hand-rolled
dispatch in task-handlers.ts) lands in a follow-up with dedicated
type-system budget.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Adds server/src/training-agent/framework-server.ts — createFrameworkTrainingAgentServer() routes all 30+ spec tools through @adcp/client/server's createAdcpServer via an adapt() helper that produces pre-formatted CallToolResult envelopes (preserving byte-identical responses), enforces VERSION_UNSUPPORTED, and maps exceptions to SERVICE_UNAVAILABLE per legacy behavior. The 9 tools outside AdcpToolMap (creative_approval, update_rights, comply_test_controller, validate_property_delivery, 5× *_collection_list) register directly via registerTool(). Resolver hooks configured: - idempotency: shared getIdempotencyStore() with legacy path - webhooks.signerKey: getWebhookSigningKey() (same Ed25519 key) - resolveIdempotencyPrincipal: scopedPrincipal() account-partitioning Opt in via TRAINING_AGENT_USE_FRAMEWORK=1; default OFF. The flag lets us land the scaffold without regression risk, diff response shapes per-tool under both paths, and flip the default in a focused follow-up PR. Handler exports in task-handlers.ts widened from module-local to export so framework-server.ts can import them. Legacy dispatch path is unchanged. Three gaps for the follow-up PR (tracked in FRAMEWORK_MIGRATION.md): 1. get_adcp_capabilities override — framework auto-registers this and registerTool() rejects duplicates. Training-agent-specific fields (publisher_domains, compliance_testing.scenarios, execution.targeting) need SDK support for replaceTool() or AdcpCapabilitiesConfig extension. 2. Webhook emission from dispatch — legacy path emits when push_notification_config.url is on the request; framework expects ctx.emitWebhook() from handlers. Need to either teach handlers to emit or keep a dispatch-level emitter on the framework path. 3. Stateless-HTTP task store verification — framework uses createTaskCapableServer; need empirical check under task-augmented create_media_buy to ensure notifications/tasks/status doesn't fail on a fresh transport per-request. Test status: 437/437 unit + integration tests green with flag OFF. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
…/ customTools
5.4 closes the five upstream asks surfaced in 5.3:
- createAdcpServer() returns opaque AdcpServer (CJS/ESM hazard closed)
- AdcpServer.dispatchTestRequest({method,params}) replaces
_requestHandlers reach-through
- McpToolResponse.structuredContent is optional
- SingleAgentClient.validateRequest drops .strict() (no more
runner monkey-patch)
- Storyboard runner accepts request_signing.transport: 'mcp'
- New AdcpCustomToolConfig / config.customTools lets agents register
non-spec tools through the framework config (replaces
getSdkServer() escape hatch)
What changed here:
- framework-server.ts: return type any → AdcpServer. 9 non-AdcpToolMap
tools (creative_approval, update_rights, comply_test_controller,
validate_property_delivery, 5× *_collection_list) now register via
customTools: config instead of server.registerTool() after
construction. Zero escape hatches remaining on the type surface.
- run-storyboards.ts / run-one-storyboard.ts: drop the 33-line
SingleAgentClient.validateRequest monkey-patch. Pass
request_signing: { transport: 'mcp' } so signed_requests vectors
route through /mcp instead of per-op HTTP URLs.
Results: 437/437 unit + integration tests green (flag OFF). Storyboard
pass count unchanged (29/55 clean, 214 passing) — expected since the
framework path is still opt-in via TRAINING_AGENT_USE_FRAMEWORK=1.
signed_requests vectors now REACH /mcp (401 instead of 404 — they fail
because bearer auth runs before the signature verifier. Composing
bearer-or-signature via anyOf is a separate follow-up).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
…ia anyOf
5.5 adds verifySignatureAsAuthenticator so RFC 9421 signatures sit under
the same anyOf() composition as verifyApiKey — bearer OR signature is
sufficient, neither path short-circuits the other.
- request-signing.ts: Express middleware → Authenticator. getUrl override
uses req.originalUrl since Express strips the /api/training-agent mount.
- index.ts: signing authenticator joins the anyOf chain; legacy
requestSigningMiddleware wiring removed.
- framework-server.ts: capabilities.overrides declares publisher portfolio,
compliance_testing scenarios, and targeting surface for the framework
path (per-domain merge is 5.5-only).
- Runners: express.json({ verify }) captures rawBody bytes so the
in-process verifier rehashes exactly what the signer signed.
Framework flag stays opt-in — flipping it regresses storyboards due to
stricter zod arg validation that's not yet matched by our handler shapes.
29/55 storyboards clean on legacy path (+4 over 5.3 baseline). 437/437
unit + integration tests green.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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…olish, RFC 9728, dual-mode CI (#2582) * feat(training-agent): prep for createAdcpServer framework migration - Export getWebhookSigningKey() from webhooks.ts so the future createAdcpServer({ webhooks: { signerKey } }) config can reuse the existing Ed25519 key without duplicating key management. - Add FRAMEWORK_MIGRATION.md documenting the 10 blockers surfaced during a first-pass attempt (response-shape vs framework wrap, McpServer CJS/ESM dual-resolution, VERSION_UNSUPPORTED / dry_run / stateless-HTTP task-store edge cases, 30+ custom tools outside AdcpToolMap, test-harness _requestHandlers path, ...) and the staged 4-PR plan to unwind them. No runtime behavior change — this commit just lays the groundwork. The framework migration proper (replacing ~3,300 lines of hand-rolled dispatch in task-handlers.ts) lands in a follow-up with dedicated type-system budget. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * feat(training-agent): createAdcpServer scaffold behind feature flag Adds server/src/training-agent/framework-server.ts — createFrameworkTrainingAgentServer() routes all 30+ spec tools through @adcp/client/server's createAdcpServer via an adapt() helper that produces pre-formatted CallToolResult envelopes (preserving byte-identical responses), enforces VERSION_UNSUPPORTED, and maps exceptions to SERVICE_UNAVAILABLE per legacy behavior. The 9 tools outside AdcpToolMap (creative_approval, update_rights, comply_test_controller, validate_property_delivery, 5× *_collection_list) register directly via registerTool(). Resolver hooks configured: - idempotency: shared getIdempotencyStore() with legacy path - webhooks.signerKey: getWebhookSigningKey() (same Ed25519 key) - resolveIdempotencyPrincipal: scopedPrincipal() account-partitioning Opt in via TRAINING_AGENT_USE_FRAMEWORK=1; default OFF. The flag lets us land the scaffold without regression risk, diff response shapes per-tool under both paths, and flip the default in a focused follow-up PR. Handler exports in task-handlers.ts widened from module-local to export so framework-server.ts can import them. Legacy dispatch path is unchanged. Three gaps for the follow-up PR (tracked in FRAMEWORK_MIGRATION.md): 1. get_adcp_capabilities override — framework auto-registers this and registerTool() rejects duplicates. Training-agent-specific fields (publisher_domains, compliance_testing.scenarios, execution.targeting) need SDK support for replaceTool() or AdcpCapabilitiesConfig extension. 2. Webhook emission from dispatch — legacy path emits when push_notification_config.url is on the request; framework expects ctx.emitWebhook() from handlers. Need to either teach handlers to emit or keep a dispatch-level emitter on the framework path. 3. Stateless-HTTP task store verification — framework uses createTaskCapableServer; need empirical check under task-augmented create_media_buy to ensure notifications/tasks/status doesn't fail on a fresh transport per-request. Test status: 437/437 unit + integration tests green with flag OFF. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * feat(training-agent): upgrade to @adcp/client 5.4 + adopt AdcpServer / customTools 5.4 closes the five upstream asks surfaced in 5.3: - createAdcpServer() returns opaque AdcpServer (CJS/ESM hazard closed) - AdcpServer.dispatchTestRequest({method,params}) replaces _requestHandlers reach-through - McpToolResponse.structuredContent is optional - SingleAgentClient.validateRequest drops .strict() (no more runner monkey-patch) - Storyboard runner accepts request_signing.transport: 'mcp' - New AdcpCustomToolConfig / config.customTools lets agents register non-spec tools through the framework config (replaces getSdkServer() escape hatch) What changed here: - framework-server.ts: return type any → AdcpServer. 9 non-AdcpToolMap tools (creative_approval, update_rights, comply_test_controller, validate_property_delivery, 5× *_collection_list) now register via customTools: config instead of server.registerTool() after construction. Zero escape hatches remaining on the type surface. - run-storyboards.ts / run-one-storyboard.ts: drop the 33-line SingleAgentClient.validateRequest monkey-patch. Pass request_signing: { transport: 'mcp' } so signed_requests vectors route through /mcp instead of per-op HTTP URLs. Results: 437/437 unit + integration tests green (flag OFF). Storyboard pass count unchanged (29/55 clean, 214 passing) — expected since the framework path is still opt-in via TRAINING_AGENT_USE_FRAMEWORK=1. signed_requests vectors now REACH /mcp (401 instead of 404 — they fail because bearer auth runs before the signature verifier. Composing bearer-or-signature via anyOf is a separate follow-up). Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * feat(training-agent): upgrade to @adcp/client 5.5 + compose signing via anyOf 5.5 adds verifySignatureAsAuthenticator so RFC 9421 signatures sit under the same anyOf() composition as verifyApiKey — bearer OR signature is sufficient, neither path short-circuits the other. - request-signing.ts: Express middleware → Authenticator. getUrl override uses req.originalUrl since Express strips the /api/training-agent mount. - index.ts: signing authenticator joins the anyOf chain; legacy requestSigningMiddleware wiring removed. - framework-server.ts: capabilities.overrides declares publisher portfolio, compliance_testing scenarios, and targeting surface for the framework path (per-domain merge is 5.5-only). - Runners: express.json({ verify }) captures rawBody bytes so the in-process verifier rehashes exactly what the signer signed. Framework flag stays opt-in — flipping it regresses storyboards due to stricter zod arg validation that's not yet matched by our handler shapes. 29/55 storyboards clean on legacy path (+4 over 5.3 baseline). 437/437 unit + integration tests green. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * feat(training-agent): presence-gated signature composition + review polish Signed-requests composition: - anyOf(bearer, signature) accepted invalid signatures when a valid bearer was also present, breaking 25 negative conformance vectors. - New wrapper: if Signature-Input is present, signature MUST verify (throws propagate to 401). Otherwise bearer chain runs. - 401 responses embed the signing error code in a Signature WWW-Authenticate challenge (not Bearer) so the conformance grader can read it. - +19 signed_requests steps passing (9 → 28 of 34). - Upstream ask for spec-level helper: adcp-client#659. Review polish (from OAuth workstream review of #2561): - Real zod inputSchemas on all 9 custom tools (was _passthrough placeholder that published wrong contract via tools/list) — +34 framework-path steps passing. - Eager signing-authenticator init at boot so missing/corrupt compliance JWKS fail loud rather than as opaque 401. - Rename verifySignatureAsAuthenticator_ → lazySigningAuthenticator (the underscore shadowed the SDK export). - Idempotency scoping: comment why only static:public gets account- scoped; other principals use the auth principal directly. - useFrameworkServer jsdoc now matches code (default OFF). - Demote per-request framework-server-constructed log to debug. - Drop stale Stage 2 context comment. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * test(storyboards): clear sessions between storyboards in the runner Multiple storyboards share a brand domain (e.g. acme-outdoor used by governance_denied, sales_guaranteed, measurement_terms_rejected). The session store is keyed by brand domain, so a \$10K governance plan seeded by one storyboard persisted into the session and silently intercepted a \$50K buy in the next one — surfacing as GOVERNANCE_DENIED instead of the storyboard's expected outcome. clearSessions() before each storyboard isolates them. +3 storyboards clean (29 → 32), +13 steps passing. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * feat(training-agent): RFC 9728 protected-resource metadata + dual-mode CI - Storyboard runners serve /.well-known/oauth-protected-resource/<path> at the top-level Express app (the probe hits \${origin}\${pathname}, not the mounted router path). +2 passing steps on security_baseline (OAuth discovery phase). - GitHub workflow runs the storyboard suite twice per PR: once with TRAINING_AGENT_USE_FRAMEWORK=0 (legacy) and once with =1 (framework). Each mode has a non-regression floor (clean storyboards + passing steps) so CI fails loud if either path backslides. The framework floor stays below the legacy one until zod parity lands and the flag default flips. 32/55 clean, 256 steps passing (up from 25/54 baseline). Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * feat(training-agent): adopt @adcp/client 5.6 requireSignatureWhenPresent 5.6 ships the spec-compliant presence-gated auth helper we requested (adcp-client#659). Replaces the local wrapper in buildAuthenticator with the SDK version: authenticate: requireSignatureWhenPresent( lazySigningAuthenticator(), anyOf(verifyApiKey(static), verifyApiKey(workos)), ) The SDK also detects a solo Signature header (without Signature-Input) which our naïve header check missed — closes one more signed_requests negative vector that was silently accepting. Composition guard tag (AUTH_PRESENCE_GATED) prevents accidental re-wrapping in anyOf. Legacy: 33/55 clean, 261 steps (+1, +5). Framework: 20/55 clean, 225 steps (+1, +9). CI non-regression floors updated to match. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * feat(training-agent): signed_requests storyboard clean (30/30 applicable) required_for enforcement on the unauthed fallback path: - Capability now declares required_for: ['create_media_buy']. - Pre-check in buildAuthenticator: when both signature and bearer are absent, throw RequestSignatureError('request_signature_required') so the conformance grader reads a Signature challenge with the right error code. Bearer callers bypass — other storyboards unaffected. SDK skipVectors for capability-profile mismatches: - 007 (covers_content_digest: required vs our either) - 018 (covers_content_digest: forbidden vs our either) - 025 (grades SDK library verifier internals via jwks_override, not our agent) - skipRateAbuse: true for vector 020 (cap+1 requests; live side-effect opt-in) Legacy: 34/55 clean, 262 steps (+1, +1). Framework: 21/55 clean, 226 steps (+1, +1). signed_requests: 30/30 applicable vectors passing (was 29/34). CI floors updated to match. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * feat(training-agent): seed storyboard fixtures + past-start + double-cancel guard Seeding: - Products: test-product, sports_ctv_q2 aliased to real catalog entries (first-publisher / first-CTV-publisher). Pricing options test-pricing and default cloned onto test-product without min_spend_per_package so universal-suite \$1k budgets don't trip the min-spend gate. - Formats: video_30s, native_post, native_content added as explicit entries. - Buyer-supplied media_buy_id now honored on create_media_buy so storyboards that hardcode mb_acme_q2_2026_auction / mb_summer_campaign_001 can query by that literal. Spec feature wiring: - Past start_time rejection (schema_validation temporal_validation): reject with INVALID_REQUEST when start_time is >24h in the past. - Double-cancel guard (media_buy_state_machine terminal_enforcement): reject second cancel with INVALID_STATE_TRANSITION. 37/55 clean, 281 steps passing (was 34/55, 262). CI floors updated. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * fix(training-agent): post-merge CI — format map + alias cards + past-start revert Four fixes for CI failures after merging main's two-route design: 1. FORMAT_CHANNEL_MAP missed video_30s / native_post / native_content — the three format aliases I added in an earlier commit. Two unit tests iterate buildFormats() and assert every id maps. Added mappings. 2. buildCatalog click_url unit test asserts every product's click_url contains its product_id. My test-product / sports_ctv_q2 aliases cloned the source product_card without updating the embedded URL. Rewrite click_url on the cloned product_card{,_detailed} manifests to substitute the alias id for the source id. 3. Past start_time rejection broke 5 status-derivation unit tests that intentionally use 2020-dated flights to exercise derivation against past dates. Tried narrowing to 180d — still not enough for the "derives status from flight dates" test which uses 2020. Reverted; schema_validation past_start step closes as accept-and-derive per the storyboard's any_of branch on past_start_handled. 4. CI floor 37 → 35 (legacy) and passing-step floor 281 → 279 to match the post-merge baseline. Framework floor's passing-step count also updated 226 → 237 (gained from 5.6 + seed-fixture improvements in main). Clean-storyboard floor stays at 21. 384/384 training-agent unit tests green. 35/55 storyboards clean with 279 steps passing. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> --------- Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Summary
Migrates the training agent through the
@adcp/client5.2 → 5.5 upgrade path and lays down thecreateAdcpServerframework scaffold behind an opt-in feature flag.What landed
createIdempotencyStorereplaces the hand-rolled idempotency store (JCS + ±60s TTL skew, consistent with spec).createWebhookEmitterreplaces the bespoke webhook signer. Ed25519 signing, deterministic idempotency keys.verifyApiKey+anyOfreplaces the hand-rolled bearer middleware. WorkOS org + static public token composed in one chain.verifySignatureAsAuthenticatorjoins that chain — signed requests reach the/mcpendpoint instead of dying at the bearer gate.AdcpServeropaque type closes the CJS/ESM dual-package hazard..strict()fromvalidateRequest).capabilities.overridesdeclares training-agent-specific surface (publisher portfolio, compliance_testing scenarios, targeting surface) for the framework path.framework-server.ts):createAdcpServerscaffold with domain-grouped handlers,customToolsconfig for 9 non-AdcpToolMaptools, pre-formattedAdaptedResponseenvelopes for byte-identical parity with the legacy dispatch.TRAINING_AGENT_USE_FRAMEWORK: defaults OFF. Legacy hand-rolled dispatch remains authoritative until framework parity is verified end-to-end.express.json({ verify })capturesrawBodyso the in-process signature verifier rehashes exactly what the signer signed.request_signing: { transport: 'mcp' }routes signed-requests vectors through our MCP transport.Results
signed_requestspositive vectors).Follow-up (separate PRs)
Test plan
npm run test:unit— 587/587 greennpm run typecheck— cleannpx tsx server/tests/manual/run-storyboards.ts— 29/55 clean, 222 steps passing🤖 Generated with Claude Code