{"version":"2.1.198","anchor":"speculation-engine-removed","canonical_anchor":"speculation-engine-removed","heading":"Speculation Engine Removed","tier":null,"area":null,"scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.198\/e\/speculation-engine-removed","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.198","markdown":"### Speculation Engine Removed\n\nThe speculative-execution subsystem (which pre-ran tool calls ahead of user confirmation to save latency) has been fully removed.\n\n**Details**\n\n- All `[Speculation]` log messages, state machines, and the pipelined-suggestion pathway are gone\n- `totalSpeculationTimeSavedMs` is no longer tracked in usage stats\n- Behavioral change: no pre-executed tool calls; permission prompts now always pause before execution\n\n**Evidence**\n\nRemoval of all `[Speculation]` strings and `totalSpeculationTimeSavedMs` field from the stats shape"}