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refactor(pty): rename model-facing tools to terminal_* and harden teardown

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Rename the six model-facing tools pty_* -> terminal_* and align every
description, guidance section, ACP card title, and rendered result to
terminal terminology. Package and service internals keep their technical
PTY names (PtyService, "unknown PTY session", node-pty).

Harden the local backend teardown:
- a failed close is retryable: drop the memoized rejection so a later
  terminal_close re-runs against the live process table
- service disposal clears the backend, reservation, and owner-cleanup
  registries even when a close fails
- stop readiness polling before teardown so an in-flight send settles as
  session_exit instead of a mis-inferred wait reason
- bound the sanitizer's pending buffer against unterminated escape runs

Update the tool catalog, package READMEs, the bilingual Agent Note, and the
acp/headless pty-tools snapshots to match.
This commit is contained in:
NI0317
2026-07-21 19:29:56 +08:00
parent 85ac747208
commit a7bfade7eb
28 changed files with 568 additions and 401 deletions
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54
examples/acp-agent/tests/snapshots/pty-tools/session.jsonl
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@@ -4,63 +4,63 @@
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18
examples/acp-agent/tests/snapshots/pty-tools/stdout.expected.jsonl
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@@ -1,16 +1,16 @@
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{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call_update","toolCallId":"pty-signal","status":"failed","content":[{"type":"content","content":{"type":"text","text":"Error: unknown PTY session pty-missing"}}]}}}
{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call","toolCallId":"pty-kill","title":"Kill PTY pty-1","kind":"delete","status":"in_progress"}}}
{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call_update","toolCallId":"pty-kill","status":"completed","content":[{"type":"content","content":{"type":"text","text":"killed PTY session pty-1"}}]}}}
{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call","toolCallId":"pty-list","title":"List PTY sessions","kind":"read","status":"in_progress"}}}
{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call_update","toolCallId":"pty-list","status":"completed","content":[{"type":"content","content":{"type":"text","text":"(no PTY sessions)"}}]}}}
{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call","toolCallId":"pty-kill","title":"Close terminal pty-1","kind":"delete","status":"in_progress"}}}
{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call_update","toolCallId":"pty-kill","status":"completed","content":[{"type":"content","content":{"type":"text","text":"closed terminal session pty-1"}}]}}}
{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call","toolCallId":"pty-list","title":"List terminal sessions","kind":"read","status":"in_progress"}}}
{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call_update","toolCallId":"pty-list","status":"completed","content":[{"type":"content","content":{"type":"text","text":"(no terminal sessions)"}}]}}}
{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":"DONE"}}}}
{"jsonrpc":"2.0","id":3,"result":{"stopReason":"end_turn"}}

2
examples/acp-agent/tests/snapshots/pty-tools/system-prompt.expected.md
View File

@@ -13,7 +13,7 @@ Use the edit tool for targeted changes to existing UTF-8 text files. It replaces
Check the [exit code: N] marker on every bash result; investigate failures before moving on.
Use PTY only when work needs persistent terminal state or interactive stdin; prefer bash/read/write/edit for bounded one-shot operations. Track every PTY session id and kill sessions that no longer matter. An inferred_idle or timeout result does not prove the foreground command exited.
Use a terminal session only when work needs persistent terminal state or interactive stdin; prefer bash/read/write/edit for bounded one-shot operations. Track every terminal session id and close sessions that no longer matter. An inferred_idle or timeout result does not prove the foreground command exited.
Track every background task id you start. You are notified in-session when a task finishes — do not busy-poll or sleep on one; keep working on independent steps and do not duplicate a running task's work. Before giving a final answer, collect every still-relevant task with task_output (set wait: true only when you are genuinely blocked on it), and task_kill tasks that stopped mattering.

258
examples/acp-agent/tests/snapshots/pty-tools/tool-schemas.expected.json
View File

@@ -87,135 +87,6 @@
]
}
},
{
"name": "pty_kill",
"description": "Close one persistent PTY and wait until its captured owned process tree is gone.",
"parameters": {
"type": "object",
"properties": {
"sessionId": {
"type": "string",
"description": "PTY session id."
}
},
"required": [
"sessionId"
]
}
},
{
"name": "pty_list",
"description": "List persistent PTY sessions owned by the current agent.",
"parameters": {
"type": "object",
"properties": {}
}
},
{
"name": "pty_read",
"description": "Read a bounded page of retained output from a persistent PTY without sending input.",
"parameters": {
"type": "object",
"properties": {
"sessionId": {
"type": "string",
"description": "PTY session id."
},
"offset": {
"type": "number",
"description": "Newest-relative line offset (default 0)."
},
"count": {
"type": "number",
"description": "Requested line count (default 500; backend caps apply)."
}
},
"required": [
"sessionId"
]
}
},
{
"name": "pty_send",
"description": "Send text to a persistent PTY. By default Enter is submitted and the call waits for a prompt, stdin wait, output silence, timeout, or session exit. Background mode returns a task id for task_output/task_kill.",
"parameters": {
"type": "object",
"properties": {
"sessionId": {
"type": "string",
"description": "PTY session id returned by pty_spawn or pty_list."
},
"text": {
"type": "string",
"description": "UTF-8 text to write to the terminal."
},
"submit": {
"type": "boolean",
"description": "Submit Enter after text (default true). Set false for control characters or incomplete REPL input."
},
"run_in_background": {
"type": "boolean",
"description": "Return a task id immediately; collect with task_output or stop with task_kill."
}
},
"required": [
"sessionId",
"text"
]
}
},
{
"name": "pty_signal",
"description": "Send an allowed signal to the current foreground process group of a persistent PTY.",
"parameters": {
"type": "object",
"properties": {
"sessionId": {
"type": "string",
"description": "PTY session id."
},
"signal": {
"type": "string",
"description": "Signal to deliver. Shell-targeted SIGKILL is rejected; use pty_kill.",
"enum": [
"SIGINT",
"SIGTERM",
"SIGKILL",
"SIGTSTP",
"SIGHUP"
]
}
},
"required": [
"sessionId",
"signal"
]
}
},
{
"name": "pty_spawn",
"description": "Create a persistent, owner-isolated PTY session from a registered backend type. Use this for shell or REPL state that must survive across tool calls.",
"parameters": {
"type": "object",
"properties": {
"type": {
"type": "string",
"description": "Registered PTY backend type, usually \"shell\"."
},
"name": {
"type": "string",
"description": "Optional owner-local display name such as \"main\" or \"gdb\"."
},
"cwd": {
"type": "string",
"description": "Initial working directory. Defaults to the deployment workspace root."
}
},
"required": [
"type"
]
}
},
{
"name": "read",
"description": "Read a UTF-8 text file and return line-numbered content.",
@@ -358,6 +229,135 @@
]
}
},
{
"name": "terminal_close",
"description": "Close one persistent terminal and wait until its captured owned process tree is gone.",
"parameters": {
"type": "object",
"properties": {
"sessionId": {
"type": "string",
"description": "Terminal session id."
}
},
"required": [
"sessionId"
]
}
},
{
"name": "terminal_list",
"description": "List persistent terminal sessions owned by the current agent.",
"parameters": {
"type": "object",
"properties": {}
}
},
{
"name": "terminal_open",
"description": "Create a persistent, owner-isolated terminal session from a registered backend type. Use this for shell or REPL state that must survive across tool calls.",
"parameters": {
"type": "object",
"properties": {
"type": {
"type": "string",
"description": "Registered terminal backend type, usually \"shell\"."
},
"name": {
"type": "string",
"description": "Optional owner-local display name such as \"main\" or \"gdb\"."
},
"cwd": {
"type": "string",
"description": "Initial working directory. Defaults to the deployment workspace root."
}
},
"required": [
"type"
]
}
},
{
"name": "terminal_read",
"description": "Read a bounded page of retained output from a persistent terminal without sending input.",
"parameters": {
"type": "object",
"properties": {
"sessionId": {
"type": "string",
"description": "Terminal session id."
},
"offset": {
"type": "number",
"description": "Newest-relative line offset (default 0)."
},
"count": {
"type": "number",
"description": "Requested line count (default 500; backend caps apply)."
}
},
"required": [
"sessionId"
]
}
},
{
"name": "terminal_send",
"description": "Send text to a persistent terminal. By default Enter is submitted and the call waits for a prompt, stdin wait, output silence, timeout, or session exit. Background mode returns a task id for task_output/task_kill.",
"parameters": {
"type": "object",
"properties": {
"sessionId": {
"type": "string",
"description": "Terminal session id returned by terminal_open or terminal_list."
},
"text": {
"type": "string",
"description": "UTF-8 text to write to the terminal."
},
"submit": {
"type": "boolean",
"description": "Submit Enter after text (default true). Set false for control characters or incomplete REPL input."
},
"run_in_background": {
"type": "boolean",
"description": "Return a task id immediately; collect with task_output or stop with task_kill."
}
},
"required": [
"sessionId",
"text"
]
}
},
{
"name": "terminal_signal",
"description": "Send an allowed signal to the current foreground process group of a persistent terminal.",
"parameters": {
"type": "object",
"properties": {
"sessionId": {
"type": "string",
"description": "Terminal session id."
},
"signal": {
"type": "string",
"description": "Signal to deliver. Shell-targeted SIGKILL is rejected; use terminal_close.",
"enum": [
"SIGINT",
"SIGTERM",
"SIGKILL",
"SIGTSTP",
"SIGHUP"
]
}
},
"required": [
"sessionId",
"signal"
]
}
},
{
"name": "todo_write",
"description": "Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).",

54
examples/headless-agent/tests/snapshots/pty-tools/session.jsonl
View File

@@ -4,63 +4,63 @@
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