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Sweep 10 Nov 2026 · 02:18Z Build v2.1.322 539 read Stable v2.1.311 Latest v2.1.322 Next v2.1.322 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.280 ·

New speculative execution for the remote-tool auto-mode classifier

The remote-tool auto-mode classifier can now guess a tool call's permission ahead of time and reuse that guess if it turns out right

Under the hood Internal Changes
JSON All of v2.1.280
Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
Auto ModeArea: what it touches
Internal ChangesKind: in v2.1.280,
Internal ChangesSection of the release

Unclear The finding doesn't say what triggers a speculative run to start or how often predictions are expected to match.

What

The classifier that decides whether a remote tool call is automatically allowed can now run ahead of time, speculatively predicting the answer before the actual permission request arrives. If the real request matches the prediction, the pre-computed result is reused; if it doesn't match, the speculative work is discarded and the classifier runs normally.

New internal helper functions handle building, checking, and abandoning these speculative runs. The tengu_remote_tool_classifier telemetry event, which tracks this classifier's behavior, now also records speculative_* and queue_* fields, including a speculative_discard_reason for when a prediction doesn't pan out.

Why

Running the classification speculatively can let the permission decision be ready sooner when the prediction is correct, since the work happens ahead of the actual ask instead of starting after it.

How sure we are
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubtThe finding doesn't say what triggers a speculative run to start or how often predictions are expected to match.

See this entry in the whole of v2.1.280 →

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