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Port ONE unit of congruency to Go. ONE. This ticket is deliberately SMALL: porting a whole layer at once is what #230 corrected (~130 units exist; a layer-sized tournament fails at that size). Do not port anything outside this unit. UNIT KEY : go-port:db:route:agent.prompt (the decomposer's idempotency marker — it lives in this ticket's TITLE. Do not edit the title, or the unit will be re-filed as a duplicate.) LAYER : db — ticket #224 (pure-Go sqlite over the SAME schema + the data-driven api_routes engine) PHP SOURCE: the `api_routes` row named agent.prompt (in the state db) THE PHP ORIGINAL — the contract, read from this route's `api_routes` row: route : agent.prompt method : GET auth : public params : {"agent_id":"str"} sql : SELECT agent_id, parent, tools, status, ts, prompt FROM agents WHERE agent_id = :agent_id It replies {route, rows} (the sql is a SELECT). DEPENDS ON (build these first — they are their own unit tickets): - go-port:db:helper:congruency_rest_route THE BUILD — small, and ITERATIVE: 1. Implement ONLY this unit in the Go port. 2. Run the equivalence-diff below, PHP original vs Go port, over the SAME database. 3. If the diff is non-empty, fix the Go side and go back to 2. The PHP is the spec: when they disagree, the Go port is wrong — never 'improve' the behaviour here. If the PHP is genuinely defective, file a separate bug ticket and port the defect faithfully. EQUIVALENCE-DIFF — both servers on the SAME db, byte-identical JSON: diff <(curl -s 'http://127.0.0.1:8899/rest.php?route=agent.prompt') \ <(curl -s 'http://127.0.0.1:8900/rest.php?route=agent.prompt') Exercise it once per declared param above (and once with each omitted — the engine binds NULL for a param the caller did not send). PHP encodes these with json_encode(..., JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES) and echoes a trailing "\n". Byte-identical therefore also means: 4-space PRETTY_PRINT indent, "/" left unescaped, PHP's key order, PHP's number formatting, and that final newline. THE GATE (how this ticket settles): the diff above is EMPTY. Not 'equivalent', not 'looks right' — empty. Paste the exact diff invocation you ran and its empty output as the evidence. Anything less is not a settled unit. Kind is `build` (a pair: coder + adversarial tester). This unit gets a tournament only if someone judges it genuinely worth one — that is the exception on #230, not the default. Filed mechanically by tools/go_port_decomposer.py under ticket #230.

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