Task execution sessions previously ignored the assigned permanent agent's
runtimeConfig model whenever the executor was handed an agents-less
worktree AgentStore, silently drifting to the pi runtime's built-in
default model instead of the configured one.
- Add TaskExecutor.getAuthoritativeAssignedAgent(): falls back to the
authoritative project `.fusion` AgentStore when the live executor's
worktree AgentStore has no record of the assigned agent, so
runtimeConfig resolution matches chat-session behavior.
- Replace direct `this.options.agentStore.getAgent(...)` lookups across
step-session, workflow-graph, and legacy execution paths with the new
authoritative lookup helper.
- Warn and audit (`noModelResolved` / `runtimeBuiltInFallbackModel`) when
a non-mock, non-test-mode session resolves no provider/model pair and
falls back to the runtime's built-in default, so the drift is visible
instead of silent.
- Add regression tests covering assigned-agent runtime-config resolution
and the new runtime-resolved audit fields.
- Add changeset (patch) and update docs/settings-reference.md and
AGENTS.md.
Files changed:
.changeset/fuzzy-fable-fallback.md | 7 +++
AGENTS.md | 1 +
docs/settings-reference.md | 2 +-
.../executor-assigned-agent-runtime-config.test.ts | 68 ++++++++++++++++++++++
.../run-audit-session-runtime-resolved.test.ts | 44 ++++++++++++++
packages/engine/src/agent-session-helpers.ts | 31 +++++++---
packages/engine/src/executor.ts | 43 +++++++++-----
7 files changed, 174 insertions(+), 22 deletions(-)
Fusion-Task-Id: FN-7787
Fusion-Task-Lineage: 40fccad5-2e67-4ee2-8199-4548ce9025c6
Co-authored-by: Fusion (runfusion.ai) <noreply@runfusion.ai>
d80cdd2b3b