Release v3.76.0 — opt-in centroid agent router, neural router assets shipped · ruvnet/ruflo

@claude-flow/cli, claude-flow and ruflo 3.76.0

Nearest-centroid agent router (ADR-527, #4953). Set CLAUDE_FLOW_ROUTER_CENTROID=1 to route tasks to agents by nearest centroid over labelled examples. On the ADR-391 test split it picked the right agent 63.7% of the time, against 25.7% for the current default. The default router is unchanged. Before it becomes the default, it still needs a cost-per-verified-solve test on fresh tasks.

Neural router assets now ship in the npm package (#4958, fixes #4954). With CLAUDE_FLOW_ROUTER_NEURAL=1, an npm install now loads the bundled KRR model, the low/med/high bucket specialists and their calibrators, and the seed rows. Before this, only a repo checkout could load them.
darwin pin moved to ~0.14.0 (#4956, fixes #4952). This fixes the clean-install and pin-drift CI failures. Without a surrogate config, darwin 0.14.0 behaves as 0.13.1.
Bridge pins agentic-flow to stable 3.5.4 (#4948). It now lists only the tools that version exposes.
Witness reports an unbuilt checkout as "not built" (#4946, #4885). Real failures are no longer hidden behind that state.
MetaHarness bench parity (#4949, #4930). A 404 in the digest is no longer misclassified as degraded.
task_complete credits only the worker still holding the task (#4964). Completing a reopened task again no longer counts the same work twice. Thanks @kevin9327.
The settings risk scanner flags node, deno, bun and php allow-rules (#4961, #4960). ruflo init --upgrade now warns when a project pre-approves these interpreters, as it already did for python, ruby and perl.
hooks route shows "centroid" as the method when the centroid router decides, instead of "keyword".

The alpha and v3alpha dist-tags stay at 3.75.2 (ADR-513).

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