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Render error cause chains at every diagnostic seam

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A TUI run against an unreachable endpoint failed with only 'fetch failed':
undici wraps transport failures in a bare TypeError whose diagnosis lives
on .cause, and every diagnostic seam rendered only error.message. The
readline front door additionally rendered failed turns as pure silence.

- dsh-llm: new errorChain(value) renders the full cause chain and
  AggregateError members with circular/hostile-coercion containment.
- llm-deepseek: pre-response transport failures throw LlmError('NETWORK')
  naming the endpoint and chaining the fetch TypeError; aborts keep their
  DOMException so the loop still classifies them as cancellation.
- agent-loop: durable turn/end error messages and logger warnings render
  through errorChain; local renderThrown copies removed.
- ui-stdio: failure turn/end reasons now render ([turn failed <code>],
  [turn aborted], [turn rejected], output-token-limit); startup-failure
  logs use errorChain.
- ui-tui: agent/error notices and the startup-failure line use errorChain.
This commit is contained in:
Turtle
2026-07-20 11:17:09 +08:00
parent a9c5d4ee32
commit ed784cfdce
23 changed files with 333 additions and 83 deletions
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6
docs/config-catalog.md
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@@ -101,7 +101,7 @@ export interface Config {
Depends on: [`AgentOptions`](core-data-structures/core.md) · [`SessionId`](core-data-structures/core.md)
Source: [`packages/core/agent-loop/src/index.ts:369`](../packages/core/agent-loop/src/index.ts)
Source: [`packages/core/agent-loop/src/index.ts:360`](../packages/core/agent-loop/src/index.ts)
## `@deepseek-ai/dsh-agent-spine-demo`
@@ -858,7 +858,7 @@ export interface Config {
}
```
Source: [`packages/ui/stdio/src/index.ts:33`](../packages/ui/stdio/src/index.ts)
Source: [`packages/ui/stdio/src/index.ts:34`](../packages/ui/stdio/src/index.ts)
## `@deepseek-ai/dsh-stdio-demo`
@@ -1302,7 +1302,7 @@ export interface TuiConfig {
}
```
Source: [`packages/ui/tui/src/index.ts:100`](../packages/ui/tui/src/index.ts)
Source: [`packages/ui/tui/src/index.ts:101`](../packages/ui/tui/src/index.ts)
## `@deepseek-ai/dsh-user-approval`

2
docs/cordis-catalog/events.md
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@@ -366,7 +366,7 @@ A declarative agent entry failed before it could publish a live agent. Consumers
Types: [SessionId](../core-data-structures/core.md)
Source: [`packages/core/agent-loop/src/index.ts:362`](../../packages/core/agent-loop/src/index.ts)
Source: [`packages/core/agent-loop/src/index.ts:353`](../../packages/core/agent-loop/src/index.ts)
## `approval/*`

2
docs/cordis-catalog/services.md
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@@ -44,7 +44,7 @@ async resume(ownerCtx: Context, options: ResumeAgentOptions): Promise<AgentHandl
Types: [Agent](../core-data-structures/core.md) · [AgentOptions](../core-data-structures/core.md) · [SessionHeader](../core-data-structures/persistence.md) · [SessionId](../core-data-structures/core.md)
Source: [`packages/core/agent-loop/src/index.ts:407`](../../packages/core/agent-loop/src/index.ts)
Source: [`packages/core/agent-loop/src/index.ts:398`](../../packages/core/agent-loop/src/index.ts)
## `ctx.agents` — `AgentRegistry`