T-743 delegated Prompt / Profile / Flow / Worker handoff

Boundaries

Base: 56795fb92cb9def9bcd701bd51d92e99526f8eff, branch work/T-743-ticket-public-surfaces. Read typed T-743, O-19 and T-739–T-742, assignment tracking/delivery docs, generated OpenAPI and the Rust testing strategy before tests. This report covers only delegated resources/docs/Worker changes, not the parent's UI/Server/API work. No backend ledger, commits, pushes, merge, review request or Ticket conclusion was performed. Existing reports and history were not rewritten. Two historical design documents received only a supersession notice above their preserved original content.

Changes

Remove ready/intake-ready/Queue from normal Worker Ticket catalogs and native WIP mappings, including all-capability configurations. Remove obsolete queue-response observation invalidation; preserve inverse relation invalidation. Internal trait adapters are not new public operations.
Align common/role/panel instructions: cases open/closed; stable classification IDs and actual tag/set CAS; assignment waiting/inprogress/done is self-report, independent of Worker/MR/delivery/acceptance/work release.
Answers during waiting/ongoing handling continue the same assignment; explicit done reissue creates a new row even for the same principal and preserves old results. Reopen and Worker exchange alone are not reissue. Done/close do not require unassignment.
Explain full-input operation identity/replay, observed assignment/event CAS, stale reread/reconciliation and unknown outcomes without automatic fresh-operation retry. Distinguish saved Assign from failed delivery. Supply observed orchestrator_assignment_id for Orchestrator starts, including generic spawn/existing-Worker assignment.
Preserve explicit user approval conditions and guarded trusted review for MR integration, without a universal MR/human approval gate on generic closure. Flow terminal handoff is not case closure, handling done, work release or Worker stop.
Add catalog exclusion and effective prompt/schema fixtures for research return, confirmation wait and reasoned closure. These are scripted instruction/schema checks, not model judgment or full-stack behavior tests.

Delegated diff paths

Worker:

crates/worker/src/feature/builtin/ticket.rs
crates/worker/src/feature/builtin/ticket/assignment_tracking.rs
crates/worker/src/prompt/system.rs

Resources:

resources/flows/coder-review.dcdl
resources/profiles/intake.dcdl
resources/profiles/orchestrator.dcdl
resources/prompts/common/tickets.md
resources/prompts/panel/orchestrator_idle_queue_notice.md
resources/prompts/role/coder.md
resources/prompts/role/intake.md
resources/prompts/role/orchestrator.md
resources/prompts/role/ticket-worker.md

Current docs / historical-status notices:

docs/development/work-items.md
docs/development/ticket-assignment-delivery.md
docs/design/ticket-wip-projection.md
docs/design/merge-request-wip-projection.md
docs/design/ticket-evidence.md
docs/design/flow-state-graph.md
docs/design/workspace-kanban-orchestrator-runtime.md (notice only)
docs/design/orchestrator-worktree-layout.md (notice only)
this new report

Focused validation evidence

Passed:

cargo test -p worker --lib prompt::system::tests::effective_: 5 tests (including new return/wait/close schema fixture).
cargo test -p worker --lib feature::builtin::ticket::: 45 tests, including normal/WIP retirement, case CAS, tag schemas/transport, assignment tracking and relation observation tests.
cargo test -p worker --lib feature::builtin::orchestration::: 7 tests, including observed delegation forwarding and resource/Profile boundaries.
cargo test -p manifest --lib builtin_profile::tests::: 4 tests.
cargo test -p manifest --lib profile::tests::builtin_orchestrator_keeps_cleanup_tool_providers_enabled: 1 test.
cargo test -p flow --lib builtin::tests::: 2 tests; built-in recipe compiles and keeps current selector review contracts.
Root cargo check, cargo fmt --all -- --check, git diff --check HEAD, and naming check (558 matching lines; 0 unapproved; 0 stale exceptions) passed at an earlier snapshot before subsequent concurrent Server/API edits. Worker files were formatted again after the final fixture addition; diff check also passed afterward.

One subsequent Worker spawn-contract invocation was blocked before test execution by a concurrent parent-owned API edit: crates/server-api/src/lib.rs:3208 (ticket_assignments_page) used #[context] context: ServerRequestContext; the API macro requires #[path], #[query], #[header], #[body], #[binary] or #[extension] and rejected it. Command: cargo test -p worker --lib feature::builtin::manage_worker::tests::worker_lifecycle_spawn_serializes_ticket_assignment_without_workdirs_or_flow. No test result or final combined-tree compile success is claimed for that invocation. Parent must revalidate its current API/combined tree.

Concrete API / runtime limits

At base 56795fb9, generated openapi/server-api.json has assignment tracking/history and start fences but no assignment-delivery query/receipt HTTP endpoint. list_pending_ticket_assignment_deliveries is an internal Store method, not a browser or normal Tool/WIP route. Normal Worker/WIP Ticket inventories also have no Orchestrator Assign/reissue/clear operation; this change removes obsolete Queue rather than fabricating a replacement operation or ledger. The parent owns any public endpoint/Tool handoff needed to satisfy the whole Ticket. Instructions explicitly require reporting unavailable typed operations and forbid inferring delivery/acceptance from status or Worker state.

The granted live typed Ticket tools still returned legacy six-state projections for the requested reads; those reads established requirements/history, not evidence that the running environment has adopted the repository's new API. No environment update occurred.

Not run/claimed: whole Worker test suite, Web/browser/visual validation, generated-contract regeneration/check, live migration, model judgment evaluation, full-stack E2E, final combined-tree root compile after concurrent API changes, or T-748 DB-boundary validation. Parent's concurrent Ticket/Server/API/Web changes are excluded from this implementation's evidence.

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