Storyboard validation: 15 storyboards skip all tracks against training agent

[bokelley]

Problem

When running storyboard validation against the public test agent, 15 of 21 storyboards show all tracks as "skip" — the scenarios are sent to testAllScenarios() but the orchestrator skips them because the agent doesn't expose the required tools.

Skipped storyboards and their missing scenarios:

Storyboard	Scenarios sent	Track(s)	Why skipped
media_buy_seller	full_sales_flow, create_media_buy, creative_lifecycle, creative_sync	media_buy, creative	Agent missing get_products, create_media_buy
media_buy_guaranteed_approval	full_sales_flow, create_media_buy, creative_sync	media_buy, creative	Same
media_buy_non_guaranteed	full_sales_flow, create_media_buy	media_buy	Same
media_buy_proposal_mode	full_sales_flow, create_media_buy, creative_lifecycle, creative_sync	media_buy, creative	Same
media_buy_catalog_creative	creative_lifecycle, full_sales_flow, create_media_buy	media_buy, creative	Same
media_buy_governance_escalation	campaign_governance, full_sales_flow, campaign_governance_denied/conditions, create_media_buy	media_buy, campaign_governance	Same
creative_lifecycle	creative_lifecycle, creative_flow	creative	Agent missing list_creative_formats, build_creative
creative_template	creative_sync, creative_flow	creative	Agent missing sync_creatives, build_creative
creative_sales_agent	creative_sync, creative_flow	creative	Same
content_standards	governance_content_standards	governance	Agent missing list_content_standards
property_governance	governance_property_lists, property_list_filters	governance	Agent missing create_property_list
si_session	si_availability, si_session_lifecycle, si_handoff	si	Agent missing si_initiate_session
signal_marketplace	signals_flow	signals	Agent missing get_signals
signal_owned	signals_flow	signals	Same
social_platform	sync_audiences, creative_sync	audiences, creative	Agent missing sync_audiences, sync_creatives

Root cause

The SCENARIO_REQUIREMENTS in @adcp/client gate scenarios based on which MCP tools the agent advertises. The public test agent apparently does not expose these tools when accessed via the public test token, or the tool names don't match what SCENARIO_REQUIREMENTS expects.

Investigation needed

1. What tools does the test agent actually advertise? Compare against SCENARIO_REQUIREMENTS.
2. Is this a test token permissions issue (the public token has limited tool access)?
3. Or does the test agent genuinely not implement these tools?

The training agent task handlers implement 29 tasks (verified in task-handlers.ts), so the tools should be available. This is likely a discovery/advertisement issue rather than a missing implementation.

Context

Discovered during storyboard validation (#1985). Only 3 storyboards pass (campaign_governance_denied/conditions/delivery) and 2 fail (capability_discovery, creative_ad_server).