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fix(tools): bound the shaped-append side channel; total error containment; recorded spill snapshot

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Responding to ds-review-bot round 2 on #661:

- logWork is bounded: past maxParallelSubCalls pending shaped-append tasks
  the ordered commit lane holds (Promise.race drains one), so a slow spill
  backend backpressures the run instead of accumulating unbounded pending
  I/O and retained results. Tasks self-remove on settlement; run
  settlement still drains every task inside the open turn. New spill test
  drives three oversized reads against a hung backend at cap 1 and proves
  the third dispatch cannot start until a save drains.
- shapeDispatchLog's catch uses errorMessage() (total), so a thrown value
  with a throwing toString cannot escape the containment and lose the
  settle event.
- CodeDispatchLog.content documented as the RENDERED result projection
  (native tool/result vocabulary), not what the program received — the
  program gets the structured value; doc pair + type-equiv re-synced.
- New RECORDED tui-agent snapshot scenario code-mode-dispatch-spill: the
  real Loader-visible composition (worker runtime + spill-local + policy)
  drives an oversized bash sub-call end-to-end; replay proves the durable
  dispatch copy is bounded to preview + locator while the program value
  stays whole (the outer result carries just the line count).

Agent Note updated (both languages).
This commit is contained in:
Tianyi Cui
2026-07-26 18:29:09 +08:00
parent 442a3dd884
commit c3c10820ba
14 changed files with 384 additions and 23 deletions
Download Patch File Download Diff File Expand all files Collapse all files
.agents/notes/implemented/feature/2026-07-26-code-dispatch-log-spill.i18n.yaml
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@@ -2,5 +2,5 @@
# side as of the last confirmed-consistent state. Both languages carry equal authority;
# after editing either side, bring the other along and re-record with:
# pnpm run verify-translation-pairing --write
2026-07-26-code-dispatch-log-spill.md: 2668c195a43ae1f6011c09413338a23caf75401e
2026-07-26-code-dispatch-log-spill.zh.md: e084ae80d7fed864c7f296b1fd6db713acf7a2b0
2026-07-26-code-dispatch-log-spill.md: 65af7808c493867cb13042a4f169ffdf05eb4538
2026-07-26-code-dispatch-log-spill.zh.md: e1293e62f9de9860300428c5c0d25c5404dc76f9
.agents/notes/implemented/feature/2026-07-26-code-dispatch-log-spill.md
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@@ -14,7 +14,7 @@ Since the full-content dispatch logging landed, a `run_code` program that reads
**A log-shaping waterfall on the registry, and the spill policy as its first listener.**
- **Seam**: `tools/code-dispatch-log` — a scope-filtered waterfall the bridge runs (via `registry.shapeDispatchLog`, contained: a throwing listener falls back to the unshaped content) over each settled sub-dispatch before appending `tool/code-dispatch`. The payload (`CodeDispatchLog`) carries the outer execution, the hoisted `agent` routing key, the sub-call identity, and the default content. Only the durable copy is shapeable — the program already received the complete value across the worker boundary, and the model sees neither.
- **Seam**: `tools/code-dispatch-log` — a scope-filtered waterfall the bridge runs (via `registry.shapeDispatchLog`, contained: a throwing listener falls back to the unshaped content, with total error formatting so a hostile thrown value cannot escape the containment) over each settled sub-dispatch before appending `tool/code-dispatch`. The payload (`CodeDispatchLog`) carries the outer execution, the hoisted `agent` routing key, the sub-call identity, and the default content — the RENDERED result projection a native `tool/result` would carry (the program itself received the structured `value`). Only the durable copy is shapeable; the model sees neither. Shaping runs OFF the program path as tracked side work, but bounded: past `maxParallelSubCalls` pending log tasks the ordered commit lane holds, so a slow spill backend backpressures the run instead of accumulating unbounded pending I/O; run settlement still drains every task inside the open turn.
- **Policy**: `dsh-spill-policy` registers a second arm on the new seam sharing the exact replacement pipeline of its model-facing arm (same `maxInlineBytes` cap, same preview + locator + within-cap invariant, same best-effort fallbacks), with the artifact labeled `dispatch` under the sub-call id. UIs and replay read the full text through the spill artifact exactly as they do for spilled native results, so the native-parity rendering story survives bounding.
- **One deliberate asymmetry**: the model-facing arm skips `read` (the `read → spill → read again` loop); the dispatch-log arm bounds `read` sub-calls too — a log copy is not model context, so the loop cannot happen, and `read` is precisely the tool that produces huge logs.
.agents/notes/implemented/feature/2026-07-26-code-dispatch-log-spill.zh.md
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@@ -14,7 +14,7 @@ Status: implemented
**在注册表上增设一个日志整形 waterfall（瀑布式事件），spill 策略作为其第一个监听器。**
- **Seam**：`tools/code-dispatch-log`，一个按作用域过滤的 waterfall，由桥接层在追加 `tool/code-dispatch` 之前对每个已结算的子分发运行（经由 `registry.shapeDispatchLog`，且故障被兜住：监听器抛出异常时回退到未整形的内容）。载荷（`CodeDispatchLog`）携带外层执行、提升出来的 `agent` 路由键、子调用标识与默认内容。可整形的只有持久副本：程序已经跨 worker 边界收到了完整的值，而模型两者都看不到。
- **Seam**：`tools/code-dispatch-log`，一个按作用域过滤的 waterfall，由桥接层在追加 `tool/code-dispatch` 之前对每个已结算的子分发运行（经由 `registry.shapeDispatchLog`，且故障被兜住：监听器抛出异常时回退到未整形的内容，并用全防御的错误格式化确保恶意抛出值无法逃出兜底）。载荷（`CodeDispatchLog`）携带外层执行、提升出来的 `agent` 路由键、子调用标识与默认内容——即原生 `tool/result` 所载的渲染后结果投影（程序本身收到的是结构化 `value`）。可整形的只有持久副本；模型两者都看不到。整形作为被跟踪的旁路工作在程序路径之外运行，但有界：待处理日志任务超过 `maxParallelSubCalls` 时有序提交车道会暂停，因此慢速 spill 后端会对整个 run 施加背压，而不是无限累积待完成 I/O；run 结算仍会在开放轮次内排空全部任务。
- **策略**：`dsh-spill-policy` 在新 seam 上注册第二个分支，与其面向模型的分支共用一模一样的替换流水线（同样的 `maxInlineBytes` 上限、同样的预览 + 定位符 + 不超上限不变式、同样的尽力而为回退），产物以 `dispatch` 为标签，记在子调用 id 名下。UI 与回放通过 spill 产物读取全文，方式与读取被 spill 的原生结果完全相同，因此与原生同等保真的渲染在施加边界之后依然成立。
- **一处有意的不对称**：面向模型的分支跳过 `read`（避免 `read → spill → read again` 循环）；分发日志分支则连 `read` 子调用也施加边界：日志副本不是模型上下文，该循环因此不可能发生，而 `read` 恰恰是会产生巨大日志的那个工具。
docs/config-catalog.md
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@@ -1718,7 +1718,7 @@ export interface Config {
export type ToolPresentationMode = 'native' | 'code' | 'both'
```
Source: [`packages/core/tools/src/index.ts:564`](../packages/core/tools/src/index.ts)
Source: [`packages/core/tools/src/index.ts:566`](../packages/core/tools/src/index.ts)
## `@deepseek-ai/dsh-tui`
docs/cordis-catalog/services.md
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@@ -1859,7 +1859,7 @@ async execute(exec: ToolExecutionInput): Promise<ToolExecutionResult>
Types: [CodeDispatchLog](../core-data-structures/tools.md) · [ContentBlock](../core-data-structures/core.md) · [ScopeKey](../core-data-structures/scope.md) · [ToolDefinition](../core-data-structures/tools.md) · [ToolExecutionInput](../core-data-structures/tools.md) · [ToolExecutionMode](../core-data-structures/tools.md) · [ToolExecutionResult](../core-data-structures/tools.md) · [ToolGuard](../core-data-structures/tools.md) · [ToolRestriction](../core-data-structures/tools.md) · [ToolSchema](../core-data-structures/tools.md)
Source: [`packages/core/tools/src/index.ts:677`](../../packages/core/tools/src/index.ts)
Source: [`packages/core/tools/src/index.ts:688`](../../packages/core/tools/src/index.ts)
## `ctx.tui` — `TuiExtensionService` (abstract seam)
docs/core-data-structures/tools.i18n.yaml
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@@ -2,5 +2,5 @@
# side as of the last confirmed-consistent state. Both languages carry equal authority;
# after editing either side, bring the other along and re-record with:
# pnpm run verify-translation-pairing --write
tools.md: 389c54bf625f762257a4830ed915d526230090ab
tools.zh.md: fba3453fa91be2544eb3ab94ca67aaf0452958b2
tools.md: 250e869397f8ecb128d5b644ff7506376d0657c6
tools.zh.md: 96fc9d3eeda0240e195beb11bea088d5606d4757
docs/core-data-structures/tools.md
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@@ -238,8 +238,10 @@ Code Mode's bridge additionally exposes each settled sub-dispatch to the `tools/
* One settled `run_code` sub-dispatch about to be logged, as seen by the
* `tools/code-dispatch-log` waterfall: the parent execution (session owner,
* outer call identity), the sub-call identity, and the outcome whose durable
* copy a listener may reshape. The complete `content` is what the program
* already received; only the `tool/code-dispatch` event's copy changes.
* copy a listener may reshape. `content` is the RENDERED result projection
* (what a native `tool/result` would carry) — the program itself received
* the structured `value` (or just the error message on failure); only the
* `tool/code-dispatch` event's copy changes.
*/
interface CodeDispatchLog {
/** The outer `run_code` execution. */
docs/core-data-structures/tools.zh.md
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@@ -238,8 +238,10 @@ Code Mode 的桥接层还会把每个已结算的子分派暴露给 `tools/code-
* One settled `run_code` sub-dispatch about to be logged, as seen by the
* `tools/code-dispatch-log` waterfall: the parent execution (session owner,
* outer call identity), the sub-call identity, and the outcome whose durable
* copy a listener may reshape. The complete `content` is what the program
* already received; only the `tool/code-dispatch` event's copy changes.
* copy a listener may reshape. `content` is the RENDERED result projection
* (what a native `tool/result` would carry) — the program itself received
* the structured `value` (or just the error message on failure); only the
* `tool/code-dispatch` event's copy changes.
*/
interface CodeDispatchLog {
/** The outer `run_code` execution. */
examples/tui-agent/tests/snapshots/code-mode-dispatch-spill/session.jsonl
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{"type":"session","version":0,"id":"main-session","createdAt":1785052797743,"cwd":"/tmp/dsh-tui-snapshot-code-mode-dispatch-spill-8cOdia"}
{"type":"turn/start","seq":0,"time":1785052797817,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}}
{"type":"user/message","seq":1,"time":1785052797818,"data":{"content":[{"type":"text","text":"Using ONE run_code program: call the bash tool exactly once with the command `seq 1 200 | awk '{printf \"line %04d: the quick brown fox jumps over the lazy dog\\n\", $1}'`, then return ONLY the number of lines in its output. Reply with just that number and stop."}],"source":{"kind":"user"}},"surfaceOp":"append"}
{"type":"session/title","seq":2,"time":1785052797825,"data":{"title":"Using ONE run_code program: call","messageSeqs":[1],"source":{"kind":"fallback"}}}
{"type":"step/start","seq":3,"time":1785052797826,"data":{"turn":1,"step":1}}
{"type":"request/header","seq":4,"time":1785052797827,"data":{"header":{"config":{"provider":"deepseek","model":"deepseek-v4-flash"},"system":"{{system}}","tools":"{{tools}}"},"reason":"initial"}}
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{"type":"assistant/message","seq":156,"time":1785052799798,"data":{"turn":1,"step":1,"content":[{"type":"reasoning","text":"The user wants me to write a single run_code program that calls bash exactly once with a specific command, then returns only the number of lines in its output."},{"type":"tool-call","id":"call_00_R6g9Uzx4h0jeUv9g3fno7490","name":"run_code","arguments":"{\"description\": \"Count lines in seq/awk output\", \"code\": \"const result = await tools.bash({\\n command: \\\"seq 1 200 | awk '{printf \\\\\\\"line %04d: the quick brown fox jumps over the lazy dog\\\\\\\\n\\\\\\\", $1}'\\\",\\n description: \\\"Generate 200 lines of text\\\"\\n});\\n\\n// Count lines in stdout\\nconst lines = result.kind === \\\"foreground\\\" ? result.stdout.text.trim().split(\\\"\\\\n\\\").length : 0;\\nreturn lines;\"}"}],"provenance":{"provider":"deepseek","model":"deepseek-v4-flash"},"usage":{"inputTokens":90,"outputTokens":186,"cacheReadTokens":3968,"reasoningTokens":32}},"sourceEventSeqs":[5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155],"surfaceOp":"append"}
{"type":"tool/call","seq":157,"time":1785052799799,"data":{"turn":1,"step":1,"callId":"call_00_R6g9Uzx4h0jeUv9g3fno7490","name":"run_code","arguments":"{\"description\": \"Count lines in seq/awk output\", \"code\": \"const result = await tools.bash({\\n command: \\\"seq 1 200 | awk '{printf \\\\\\\"line %04d: the quick brown fox jumps over the lazy dog\\\\\\\\n\\\\\\\", $1}'\\\",\\n description: \\\"Generate 200 lines of text\\\"\\n});\\n\\n// Count lines in stdout\\nconst lines = result.kind === \\\"foreground\\\" ? result.stdout.text.trim().split(\\\"\\\\n\\\").length : 0;\\nreturn lines;\"}"}}
{"type":"tool/code-dispatch-start","seq":158,"time":1785052799893,"data":{"parentCallId":"call_00_R6g9Uzx4h0jeUv9g3fno7490","subCallId":"call_00_R6g9Uzx4h0jeUv9g3fno7490:code:1","name":"bash","arguments":{"command":"seq 1 200 | awk '{printf \"line %04d: the quick brown fox jumps over the lazy dog\\n\", $1}'","description":"Generate 200 lines of text"}}}
{"type":"tool/code-dispatch","seq":159,"time":1785052799923,"data":{"parentCallId":"call_00_R6g9Uzx4h0jeUv9g3fno7490","subCallId":"call_00_R6g9Uzx4h0jeUv9g3fno7490:code:1","name":"bash","arguments":{"command":"seq 1 200 | awk '{printf \"line %04d: the quick brown fox jumps over the lazy dog\\n\", $1}'","description":"Generate 200 lines of text"},"isError":false,"content":[{"type":"text","text":"line 0001: the quick brown fox jumps over the lazy dog\nline 0002: the quick brown fox jumps over the lazy dog\nline 0003: the quick brown fox jumps over the lazy dog\nline 0004: the quick s over the lazy dog\nline 0198: the quick brown fox jumps over the lazy dog\nline 0199: the quick brown fox jumps over the lazy dog\nline 0200: the quick brown fox jumps over the lazy dog\n\n\n(Omitted 10629 bytes. Full formatted result stored at: /tmp/dsh-tui-snapshot-code-mode-dispatch-spill-8cOdia/.spill/session-2d2b9e84a250/825a63550249-bash.txt. Use read with offset/limit, or grep this path to search within it.)"}]}}
{"type":"tool/result","seq":160,"time":1785052799925,"data":{"turn":1,"step":1,"callId":"call_00_R6g9Uzx4h0jeUv9g3fno7490","content":[{"type":"text","text":"200"}],"isError":false},"sourceEventSeqs":[157],"surfaceOp":"append"}
{"type":"step/end","seq":161,"time":1785052799926,"data":{"turn":1,"step":1}}
{"type":"step/start","seq":162,"time":1785052799928,"data":{"turn":1,"step":2}}
{"type":"assistant/chunk","seq":163,"time":1785052800414,"data":{"turn":1,"step":2,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}}
{"type":"assistant/chunk","seq":164,"time":1785052800415,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}}
{"type":"assistant/chunk","seq":165,"time":1785052800572,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":" result"}}}
{"type":"assistant/chunk","seq":166,"time":1785052800604,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":" is"}}}
{"type":"assistant/chunk","seq":167,"time":1785052800604,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":" "}}}
{"type":"assistant/chunk","seq":168,"time":1785052800604,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":"200"}}}
{"type":"assistant/chunk","seq":169,"time":1785052800604,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":" lines"}}}
{"type":"assistant/chunk","seq":170,"time":1785052800605,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":"."}}}
{"type":"assistant/chunk","seq":171,"time":1785052800635,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":" The"}}}
{"type":"assistant/chunk","seq":172,"time":1785052800636,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}}
{"type":"assistant/chunk","seq":173,"time":1785052800666,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":" wants"}}}
{"type":"assistant/chunk","seq":174,"time":1785052800666,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":" me"}}}
{"type":"assistant/chunk","seq":175,"time":1785052800666,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":" to"}}}
{"type":"assistant/chunk","seq":176,"time":1785052800666,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":" reply"}}}
{"type":"assistant/chunk","seq":177,"time":1785052800699,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":" with"}}}
{"type":"assistant/chunk","seq":178,"time":1785052800700,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":" just"}}}
{"type":"assistant/chunk","seq":179,"time":1785052800700,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":" that"}}}
{"type":"assistant/chunk","seq":180,"time":1785052800700,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":" number"}}}
{"type":"assistant/chunk","seq":181,"time":1785052800700,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":" and"}}}
{"type":"assistant/chunk","seq":182,"time":1785052800731,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":" stop"}}}
{"type":"assistant/chunk","seq":183,"time":1785052800731,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":"."}}}
{"type":"assistant/chunk","seq":184,"time":1785052800731,"data":{"turn":1,"step":2,"chunk":{"type":"block-start","index":1,"blockType":"text"}}}
{"type":"assistant/chunk","seq":185,"time":1785052800731,"data":{"turn":1,"step":2,"chunk":{"type":"text-delta","index":1,"text":"200"}}}
{"type":"assistant/chunk","seq":186,"time":1785052800731,"data":{"turn":1,"step":2,"chunk":{"type":"block-end","index":0,"block":{"type":"reasoning","text":"The result is 200 lines. The user wants me to reply with just that number and stop."}}}}
{"type":"assistant/chunk","seq":187,"time":1785052800731,"data":{"turn":1,"step":2,"chunk":{"type":"block-end","index":1,"block":{"type":"text","text":"200"}}}}
{"type":"assistant/chunk","seq":188,"time":1785052800732,"data":{"turn":1,"step":2,"chunk":{"type":"usage","usage":{"inputTokens":33,"outputTokens":22,"cacheReadTokens":4224,"reasoningTokens":20}}}}
{"type":"assistant/chunk","seq":189,"time":1785052800732,"data":{"turn":1,"step":2,"chunk":{"type":"finish","reason":{"kind":"stop"}}}}
{"type":"assistant/message","seq":190,"time":1785052800733,"data":{"turn":1,"step":2,"content":[{"type":"reasoning","text":"The result is 200 lines. The user wants me to reply with just that number and stop."},{"type":"text","text":"200"}],"provenance":{"provider":"deepseek","model":"deepseek-v4-flash"},"usage":{"inputTokens":33,"outputTokens":22,"cacheReadTokens":4224,"reasoningTokens":20}},"sourceEventSeqs":[163,164,165,166,167,168,169,170,171,172,173,174,175,176,177,178,179,180,181,182,183,184,185,186,187,188,189],"surfaceOp":"append"}
{"type":"step/end","seq":191,"time":1785052800733,"data":{"turn":1,"step":2}}
{"type":"turn/end","seq":192,"time":1785052800733,"data":{"turn":1,"reason":{"kind":"completed"}}}
examples/tui-agent/tests/snapshots/code-mode-dispatch-spill/terminal.expected.txt
+65
View File
@@ -0,0 +1,65 @@
terminal 100x36 buffer=normal length=36 base=0 viewport=0
lifecycle started=1 stopped=0 progress=inactive
title "Using ONE run_code program: call — DSH TUI snapshot"
cursor hidden column=1 viewportRow=26 bufferRow=26
buffer
0| " DEEPSEEK HARNESS"
style 1-8 fg=bright-blue bold
style 10-16 bold
1| " Using ONE run_code program: call"
style 1-32 fg=bright-black
2| " deepseek-v4-flash • main-session"
style 1-34 dim
3| <blank>
4| "▌ "
style 0-0 fg=bright-blue
5| "▌ You "
style 0-0 fg=bright-blue
style 2-4 fg=bright-blue bold
6| "▌ Using ONE run_code program: call the bash tool exactly once with the command seq 1 200 | awk "
style 0-0 fg=bright-blue
style 79-99 fg=cyan
7| "▌ '{printf \"line %04d: the quick brown fox jumps over the lazy dog\\n\", $1}', then return ONLY the "
style 0-0 fg=bright-blue
style 2-74 fg=cyan
8| "▌ number of lines in its output. Reply with just that number and stop. "
style 0-0 fg=bright-blue
9| "▌ "
style 0-0 fg=bright-blue
10| <blank>
11| " Reasoning "
style 1-9 fg=bright-black italic
12| " The user wants me to write a single run_code program that calls bash exactly once with a specific "
style 1-99 fg=bright-black italic
13| " command, then returns only the number of lines in its output. "
style 1-61 fg=bright-black italic
14| <blank>
15| "▌ "
style 0-0 fg=green
16| "▌ ✓ Count lines in seq/awk output "
style 0-0 fg=green
style 2-2 fg=green bold
style 3-32 bold
17| "▌ 200 "
style 0-0 fg=green
18| "▌ "
style 0-0 fg=green
19| <blank>
20| " Reasoning "
style 1-9 fg=bright-black italic
21| " The result is 200 lines. The user wants me to reply with just that number and stop. "
style 1-83 fg=bright-black italic
22| <blank>
23| " Assistant "
style 1-9 fg=bright-magenta bold
24| " 200 "
25| "────────────────────────────────────────────────────────────────────────────────────────────────────"
style 0-99 dim
26| " "
style 1-1 inverse
27| "────────────────────────────────────────────────────────────────────────────────────────────────────"
style 0-99 dim
28| "deepseek-v4-flash /workspace/project ↑123 ↓208 cache 99% 3% c"
style 0-93 dim
style 96-99 dim
29-35| <blank>
examples/tui-agent/tests/tui.snapshot.ts
+32
View File
@@ -27,6 +27,8 @@ import * as ToolTodo from '@deepseek-ai/dsh-tool-todo'
import * as ToolRalph from '@deepseek-ai/dsh-tool-ralph'
import * as ToolWorkflow from '@deepseek-ai/dsh-tool-workflow'
import { createTuiChat, FILE_REFERENCE_PROMPT } from '@deepseek-ai/dsh-tui'
import LocalSpillStore from '@deepseek-ai/dsh-spill-local'
import * as SpillPolicy from '@deepseek-ai/dsh-spill-policy'
import UserInteractionService from '@deepseek-ai/dsh-user-interaction'
import WorkerWorkflowEngine from '@deepseek-ai/dsh-workflow-workerthread'
import { HeadlessTerminal } from '../../../packages/ui/tui/tests/headless-terminal.ts'
@@ -56,6 +58,13 @@ interface Scenario {
* mounts it; the rest cover the default, todo-free composition.
*/
enableTodo?: boolean
/**
* Mount the spill stack (local backend + policy) with this inline cap, as the
* shipped configs do. The dispatch-spill scenario proves the durable
* `tool/code-dispatch` copy of an oversized sub-result is bounded to a
* preview + locator while the program value stays whole.
*/
spillMaxInlineBytes?: number
}
const SCENARIOS: Scenario[] = [
@@ -96,6 +105,14 @@ const SCENARIOS: Scenario[] = [
expectedEventCounts: { 'tool/code-dispatch': 2 },
recorded: true,
},
{
name: 'code-mode-dispatch-spill',
composition: 'code',
expectedTools: ['run_code'],
expectedEventCounts: { 'tool/code-dispatch-start': 1, 'tool/code-dispatch': 1 },
recorded: true,
spillMaxInlineBytes: 600,
},
{
name: 'dynamic-workflow',
composition: 'native',
@@ -225,6 +242,10 @@ async function mountScenarioContext(
if (scenario.composition === 'code' || scenario.composition === 'advanced') {
await ctx.plugin(WorkerCodeRuntime, {})
}
if (scenario.spillMaxInlineBytes !== undefined) {
await ctx.plugin(LocalSpillStore, { root: join(cwd, '.spill') })
await ctx.plugin(SpillPolicy, { maxInlineBytes: scenario.spillMaxInlineBytes })
}
if (scenario.composition === 'advanced') await ctx.plugin(ToolCordis, { vmTimeoutMs: 5_000 })
if (MODE === 'record' && scenario.recorded) {
await ctx.plugin(LlmDeepSeek)
@@ -344,6 +365,17 @@ async function runScenario(scenario: Scenario): Promise<ScenarioResult> {
expect(events.filter(event => event.type === 'user/message' && event.data.source.kind === 'plugin').map(event => (event.data as { content: unknown }).content))
.toContainEqual([{ type: 'text', text: 'The user switched this session back to the default mode.' }])
}
if (scenario.spillMaxInlineBytes !== undefined) {
// The REAL pipeline ran (tools execute on replay too): the durable
// dispatch copy is bounded to a preview + locator under the run cwd,
// while the outer result still carries the program's whole value.
const dispatch = events.find(event => (event.type as string) === 'tool/code-dispatch')
const content = (dispatch?.data as { content: { type: string; text?: string }[] }).content
const text = content.filter(block => block.type === 'text').map(block => block.text ?? '').join('')
expect(Buffer.byteLength(text, 'utf8')).toBeLessThanOrEqual(scenario.spillMaxInlineBytes)
expect(text).toContain('Full formatted result stored at:')
expect(text).toContain('.spill')
}
expect(events.filter(event => event.type === 'tool/result').every(event => !event.data.isError)).toBe(true)
expect(events.filter(event => event.type === 'turn/end').every(event => event.data.reason.kind !== 'error')).toBe(true)
if (scenario.name === 'dynamic-workflow' || scenario.name === 'cordis-dynamic-toolchain') {
packages/core/tools/src/code-mode.ts
+12 -8
View File
@@ -359,12 +359,9 @@ export function createRunCodeTool(registry: ToolRegistry, requireRuntime: () =>
// entries, awaits the live pool, and drains the ordered commit lane —
// including a commit already in progress when the program returned.
await drive()
// Every settle's shaped append lands inside the open run_code turn.
while (logWork.size > 0) {
const pending = [...logWork]
await Promise.allSettled(pending)
for (const done of pending) logWork.delete(done)
}
// Every settle's shaped append lands inside the open run_code turn
// (tasks self-remove on settlement).
while (logWork.size > 0) await Promise.allSettled([...logWork])
}
// Read through a call, not a bare property: the abort state genuinely
@@ -406,7 +403,7 @@ export function createRunCodeTool(registry: ToolRegistry, requireRuntime: () =>
: { isError: false, value: result.value })
const agent = exec.agent
if (agent === undefined) return
logWork.add((async () => {
const task: Promise<void> = (async () => {
// The durable copy may be reshaped (e.g. spilled to a preview +
// locator) by the log-shaping waterfall; the program's value
// and the model contract are untouched.
@@ -428,7 +425,8 @@ export function createRunCodeTool(registry: ToolRegistry, requireRuntime: () =>
isError: result.isError,
content: logged,
})
})())
})().finally(() => { logWork.delete(task) })
logWork.add(task)
}
pendingQueue.push({
flight: Promise.resolve(),
@@ -470,6 +468,12 @@ export function createRunCodeTool(registry: ToolRegistry, requireRuntime: () =>
exec.deferContext(context)
}
settle(result)
// Backpressure on the shaped-append side channel: pending log
// tasks (each retaining a full result while a slow backend
// stores it) are bounded by the pool cap — beyond it the
// ordered lane waits, so later sub-calls cannot start and
// pending I/O/memory cannot grow without bound.
while (logWork.size > maxParallel) await Promise.race(logWork)
},
})
wakeup()
packages/core/tools/src/index.ts
+5 -3
View File
@@ -289,8 +289,10 @@ export type ToolExecutionMode =
* One settled `run_code` sub-dispatch about to be logged, as seen by the
* `tools/code-dispatch-log` waterfall: the parent execution (session owner,
* outer call identity), the sub-call identity, and the outcome whose durable
* copy a listener may reshape. The complete `content` is what the program
* already received; only the `tool/code-dispatch` event's copy changes.
* copy a listener may reshape. `content` is the RENDERED result projection
* (what a native `tool/result` would carry) — the program itself received
* the structured `value` (or just the error message on failure); only the
* `tool/code-dispatch` event's copy changes.
*/
export interface CodeDispatchLog {
/** The outer `run_code` execution. */
@@ -991,7 +993,7 @@ export class ToolRegistry extends Service {
() => Promise.resolve(dispatch.content),
)
} catch (error: unknown) {
this.ctx.logger.warn(`tools: code-dispatch-log listener failed for ${dispatch.name}: ${String(error)}; logging the unshaped content`)
this.ctx.logger.warn(`tools: code-dispatch-log listener failed for ${dispatch.name}: ${errorMessage(error)}; logging the unshaped content`)
return dispatch.content
}
}
packages/spill/spill-policy/tests/spill-policy.spec.ts
+60
View File
@@ -29,9 +29,12 @@ const testToolSignal = new AbortController().signal
class StubStore extends SpillStore {
saves: SaveTextSpill[] = []
fail = false
/** Per-save hang hook: each call awaits the returned promise before completing. */
gate: (() => Promise<void>) | undefined
async saveText(input: SaveTextSpill): Promise<SpillRef> {
if (this.fail) throw new Error('disk full')
await this.gate?.()
this.saves.push(input)
return {
locator: SpillLocator(`/spill/${input.suggestedName}`),
@@ -367,6 +370,63 @@ describe('the durable dispatch-log arm', () => {
expect(smallAfterHuge).toBe(true)
})
it('a sustained slow backend backpressures the run instead of accumulating unbounded log tasks', async () => {
const ctx = new Context()
await ctx.plugin(SystemPrompt)
// Cap 1: once the hung shaped-append backlog exceeds the cap, the ordered
// lane holds inside the second commit, so the THIRD dispatch cannot start
// until a pending save drains — the bound is observable as its missing
// start event.
await ctx.plugin(ToolRegistry, { mode: 'code', maxParallelSubCalls: 1 })
await ctx.plugin(StubStore)
await ctx.plugin(SpillPolicy, { maxInlineBytes: 100 })
await ctx.plugin(WorkerCodeRuntime, {})
const store = ctx.spillStore as StubStore
const releases: (() => void)[] = []
store.gate = () => new Promise<void>((resolve) => { releases.push(resolve) })
const events: { type: string; data: unknown }[] = []
const agent = {
session: {
header: { id: SessionId('dispatch-spill-bound'), cwd: '/workspace' },
append: (type: string, data: unknown) => { events.push({ type, data }) },
},
}
ctx.tools.register(textTool('huge_read', 'H'.repeat(2_000)))
const started = (n: number): boolean => events.some(event => event.type === 'tool/code-dispatch-start'
&& (event.data as { subCallId: string }).subCallId.endsWith(`:code:${n}`))
const runPromise = ctx.tools.execute({
signal: testToolSignal,
callId: CallId('parent-bound'),
name: 'run_code',
arguments: {
code: 'await tools.huge_read({}); await tools.huge_read({}); await tools.huge_read({}); return "done"',
description: 'Three oversized reads against a hung backend',
},
agent: agent as never,
})
// Two hung saves = backlog above the cap: the lane must hold before
// starting dispatch 3.
await vi.waitFor(() => {
if (releases.length < 2) throw new Error('second hung save not reached yet')
})
expect(started(2)).toBe(true)
expect(started(3)).toBe(false)
releases.shift()!()
// Draining one pending save releases the lane; dispatch 3 starts.
await vi.waitFor(() => {
if (!started(3)) throw new Error('third dispatch not started yet')
})
while (releases.length > 0) releases.shift()!()
const result = await runPromise
expect(result.isError).toBe(false)
await vi.waitFor(() => {
if (releases.length > 0) { while (releases.length > 0) releases.shift()!() }
if (events.filter(event => event.type === 'tool/code-dispatch').length !== 3) {
throw new Error('settle events still pending')
}
})
})
it('a saveText failure keeps the complete content in the durable log (best-effort)', async () => {
const ctx = new Context()
await ctx.plugin(SystemPrompt)