fix(langgraph): extract __interrupt__ from values/updates events#223
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LangGraph emits interrupts as part of `values` and `updates` events under
the special `__interrupt__` key, not as standalone `interrupt` events.
The bridge was only handling the latter, so `agent.interrupt()` /
`agent.interrupts()` never populated for real graphs and any UI gated on
those signals (e.g. <chat-interrupt-panel>) stayed hidden.
Adds an `extractInterrupts` helper called from the values/updates branches
that:
- Mirrors `__interrupt__` payloads onto `interrupt$` (latest) and
`interrupts$` (full list).
- Clears both subjects when a values/updates event arrives without an
`__interrupt__` key — LangGraph does not emit a separate "cleared"
event, so the absence is the dismissal signal once a resume completes.
Verified end-to-end against the canonical examples/chat demo: the
approval welcome suggestion now surfaces <chat-interrupt-panel>, and all
four actions (Accept / Edit / Respond / Ignore) resume the graph and
dismiss the panel correctly.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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* feat(examples-chat-python): research subagent + tool * feat(examples-chat-angular): register research as a subagent tool * feat(examples-chat-angular): mount chat-subagents in demo shell * feat(examples-chat-angular): welcome suggestion exercising subagents * docs(examples-chat-smoke): populate Subagents checklist * docs(spec): canonical examples/chat Phase 3B subagents Splits Phase 3 of the canonical demo's roadmap into 3A (interrupts — shipped in PRs #222 + #223) and this 3B (subagents). Adds a compiled child graph (`research`) the parent dispatches as a tool, surfaces `<chat-subagents>` in the demo shell, and adds one welcome suggestion. Mirrors Phase 3A's shape: ~90 LOC, single PR, TDD'd python graph + Angular shell wiring + welcome suggestion + CHECKLIST + verification. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * docs(plan): canonical examples/chat Phase 3B subagents plan Single-subagent-dispatch plan for Phase 3B. ~90 LOC across 7 phased tasks (Phases 0-6). TDD'd python graph (research subgraph + tool), Angular adapter config (subagentToolNames), shell wiring (chat-subagents mount), welcome suggestion, CHECKLIST, server-side verification probe, and PR open. Mirrors the Phase 3A plan format committed at daf31f89. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> --------- Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Summary
LangGraph emits interrupts as part of `values` and `updates` events under the special `interrupt` key, not as standalone `interrupt` events. The `@ngaf/langgraph` bridge was only handling the latter, so `agent.interrupt()` / `agent.interrupts()` never populated for real graphs — any UI gated on those signals (e.g. ``) stayed hidden.
Adds an `extractInterrupts` helper called from the values/updates branches that:
Verification
Live smoke against the canonical `examples/chat` demo (issue surfaced as Finding H during the Phase 3A re-smoke):
Test plan
🤖 Generated with Claude Code