plat 454

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PLAT-454 — Steps and Relay guidance mention no platform stores they do not have

Coordination	Value
State	fixed on main; not deployed
Date	2026-10-04
Owner	plans-contracts
Related	PLAT-447 (Relays lose DB, KB and learnings), PLAT-441

Source

A read-only review of PLAT-447's commit (a9a2a7245) found enforcement sound but the generic step prompt still describing the database, knowledgebase and learnings. The owner's rule for the fix: do not explain the absence ("there is no database"); simply leave the topic out, because naming it keeps it in the model's head.

Done

• step-system-prompts.md: for a step with DBAccess = none the DB path row, the whole "persistent stores" section (soul, db, knowledgebase, learnings), the "output to the db" line and the DB example in the failure rule are omitted. A normal workflow step is unchanged.
• BuildManagedWorkflowDBGuidance("none") returns nothing; the message-sequence access note names no store for such a step.
• Relay Builder prompt and skill rewritten positively: data moves through INPUT, variables and step outputs; a user's own database or system is reached through a script tool or an MCP integration with secrets. The "Execution stores" section, the platform_stores: false explanation and the "no database / KB / learnings" sentences are gone.
• A false log line ("granted direct DB access but no DB_PATH") no longer fires for access none.
• Test: a rendered no-stores step prompt contains none of the store text; a normal step keeps it.

Review points not changed

• Builder-side helper sessions (setupWorkshopToolAgentSession) are not gated for Relays. They are design-time helpers, and the Relay Builder's tool list has no DB tools, so there is no reachable path; left as is.
• A draft Relay on code layout 0 with saved scripts cannot run (API, test and Builder runs all require layout 1, and publishing does too), so the blocked learnings/ folder does not matter in practice.
• workflow.json "not found" re-enabling stores is harmless: a real Relay always has a manifest.