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feat(FN-3459): enable tool mode for heartbeat agent sessions

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This merge enables heartbeat agents to use coding sessions with tool access (FN-3459). It adds heartbeat session prompt tests, updates the heartbeat executor to support tool mode, modifies dashboard node components and hooks, and includes a fix for a typecheck regression. A changeset is included for

Fusion-Task-Id: FN-3459
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Fusion
2026-05-04 20:43:09 -07:00
committed by gsxdsm
parent 783d834b91
commit a0c1e5b982
7 changed files with 32 additions and 9 deletions
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docs/agents.md
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@@ -456,6 +456,10 @@ Heartbeat runs are composed from multiple prompt layers so each wake has full id
1. **System prompt**
- Task-scoped runs use the task heartbeat system prompt.
- No-task runs use the ambient/no-task heartbeat system prompt (tool-aligned: no task-scoped tools).
2. **Workspace tool mode**
- Heartbeat sessions are created with coding-capable workspace tools (`read`, `write`, `edit`, `bash`, `grep`, `find`, `ls`) inside worktree boundary guards.
- Heartbeat behavior still stays lightweight: one concrete action per run, then `fn_heartbeat_done`.
- Engine-owned heartbeat tools are still layered on top (task creation/log/docs for task-scoped runs; ambient/delegation/memory tools for no-task runs).
2. **Agent identity and instructions bundle**
- Inline instructions (`instructionsText`)
- File-backed instructions (`instructionsPath`)