{"type":"user/message","seq":1,"time":1783344675544,"data":{"content":[{"type":"text","text":"Use the subagent tool exactly once to delegate this subtask to a child agent: 'Reply with exactly the word CHILD_OK and nothing else.' After the subagent returns, reply with the single word PARENT_DONE and stop. Do not use the bash tool."}],"source":{"kind":"user"}},"surfaceOp":"append"}
{"type":"request/header","seq":3,"time":1783344675546,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are a coding assistant powered by the deepseek-v4-flash model. Your working\ndirectory is /tmp/acp-snap-cwd-9cdnFz.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\nUse the workflow tool ONLY when the user explicitly asks for a workflow or for large multi-agent orchestration: you write a JavaScript script (the tool description documents the exact format) that fans work out across many subagents with phases and structured results. For one or two delegations, prefer plain subagent calls.","tools":[{"name":"workflow","description":"Run a JavaScript workflow script that orchestrates subagents at scale. Use this for work that fans out across many independent pieces — an audit over many files, a migration, multi-angle research, adversarial verification of findings — where you write the orchestration as a script instead of delegating turn by turn.\n\nThe script MUST begin with `export const meta = {...}` — a PURE object literal (no variables, calls, or template interpolation) with required `name` (short kebab-case) and `description` strings, optional `whenToUse` string and `phases` array (`{title, detail?, model?}`). The body after it is plain JavaScript (NOT TypeScript) running with top-level await; end with `return <value>` — the value must be JSON-serializable and is this tool's result.\n\nScript-body hooks:\n- `agent(prompt, opts?): Promise<any>` — run one subagent to completion. Without `opts.schema` it resolves to the child's final text; with `opts.schema` (an object-rooted JSON Schema using ONLY type/properties/required/additionalProperties/items/enum/const — no oneOf/pattern/format/numeric bounds) it resolves to the validated object. Resolves `null` when the child fails (filter with `.filter(Boolean)`). Other opts: `label` (display), `phase` (progress group), `model` (override). Anything else (`effort`/`isolation`/`agentType`) is rejected loudly.\n- `pipeline(items, ...stages): Promise<any[]>` — run each item through the stages independently with NO barrier between stages (prefer this for multi-stage work). Each stage receives `(prev, item, index)`. An ordinary stage throw drops that ITEM to `null` and skips its remaining stages.\n- `parallel(thunks): Promise<any[]>` — run zero-argument functions concurrently and await ALL of them (a barrier; use only when a stage genuinely needs every prior result together). A throwing thunk resolves to `null`.\n- `phase(title)` — start a progress phase; `log(message)` — narrate progress; `args` — the tool call's `args` input, verbatim.\n\nMisused hooks (bad arguments, unknown options, unsupported schemas, tripped caps) throw errors that ALWAYS kill the script — they never dissolve into a per-item `null`.\n\nConstraints: concurrency and total-agent caps apply; `Date.now()`, `Math.random()`, and argless `new Date()` throw (pass timestamps via `args`); no filesystem, network, timers, or Node.js APIs are provided — the agents do the work, the script only coordinates them. The run executes in the foreground:
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{"type":"assistant/chunk","seq":69,"time":1783344676881,"data":{"turn":1,"step":1,"chunk":{"type":"block-end","index":1,"block":{"type":"tool-call","id":"call_00_s1UKQTLbT5cwongh9BUO3617","name":"subagent","arguments":"{\"description\": \"Child agent test\", \"prompt\": \"Reply with exactly the word CHILD_OK and nothing else.\"}"}}}}
{"type":"assistant/message","seq":72,"time":1783344676883,"data":{"turn":1,"step":1,"content":[{"type":"reasoning","text":"The user wants me to use the subagent tool exactly once with a specific prompt, then reply with PARENT_DONE after the subagent returns."},{"type":"tool-call","id":"call_00_s1UKQTLbT5cwongh9BUO3617","name":"subagent","arguments":"{\"description\": \"Child agent test\", \"prompt\": \"Reply with exactly the word CHILD_OK and nothing else.\"}"}],"usage":{"inputTokens":2908,"outputTokens":103,"cacheReadTokens":0,"reasoningTokens":30}},"sourceEventSeqs":[4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71],"surfaceOp":"append"}
{"type":"tool/call","seq":73,"time":1783344676883,"data":{"turn":1,"step":1,"callId":"call_00_s1UKQTLbT5cwongh9BUO3617","name":"subagent","arguments":"{\"description\": \"Child agent test\", \"prompt\": \"Reply with exactly the word CHILD_OK and nothing else.\"}"}}
{"type":"assistant/chunk","seq":112,"time":1783344678607,"data":{"turn":1,"step":2,"chunk":{"type":"block-end","index":0,"block":{"type":"reasoning","text":"The subagent returned \"CHILD_OK\" as expected. Now I need to reply with exactly \"PARENT_DONE\" and nothing else."}}}}
{"type":"assistant/message","seq":116,"time":1783344678608,"data":{"turn":1,"step":2,"content":[{"type":"reasoning","text":"The subagent returned \"CHILD_OK\" as expected. Now I need to reply with exactly \"PARENT_DONE\" and nothing else."},{"type":"text","text":"PARENT_DONE"}],"usage":{"inputTokens":82,"outputTokens":34,"cacheReadTokens":2944,"reasoningTokens":29}},"sourceEventSeqs":[77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115],"surfaceOp":"append"}
