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Proposals/Set thinking and effort in /model; start V3 clou
proposaldeveloperP3Worth a lookKiro

Set thinking and effort in /model; start V3 cloud sessions before /repo

Kiro 2.23 makes /model the place to switch models and set thinking/effort (model-supported options, saved for later). V2 deprecates bare /effort. V3 can start a cloud session before a repo; attach with /repo or leave the repo optional.

Why this loop

Reasoning setup is no longer split across commands: /model is the primary interface to pick a model and configure that model's thinking and effort in one panel, which only shows supported options and persists them. On V2, bare /effort is legacy (deprecation warning, then Effort in /model) while /effort <level> still works, so default muscle memory should move to /model. On V3, /effort still opens its own picker, and you can start a cloud session before connecting a repository—run /repo when you want one, or continue from the connection screen with the repository marked optional if no source provider is linked. Adopting that order unblocks cloud work and keeps reasoning controls in one place. Do not infer extra behavior from the unnamed Improvements/Fixes/Patches sections.

Proposed actions

  1. In Kiro, run /model, select the model, then set thinking and effort in that same panel so only supported options appear and Kiro saves them for future sessions.
  2. On Kiro V2, stop using bare /effort (it warns and opens Effort in /model); use /model for reasoning settings, and keep /effort <level> only as an explicit shortcut.
  3. On Kiro V3, start a cloud session before connecting a repository, then run /repo when you are ready to attach one.
  4. If no source provider is connected and Kiro opens the connection screen, continue with the repository marked optional instead of blocking on a repo first.

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Context

Assistant: Kiro Proposal: Set thinking and effort in /model; start V3 cloud sessions before /repo Summary: Kiro 2.23 makes /model the place to switch models and set thinking/effort (model-supported options, saved for later). V2 deprecates bare /effort. V3 can start a cloud session before a repo; attach with /repo or leave the repo optional. Primary source: https://kiro.dev/changelog/cli/2-23#patch-2-23-1

Why it matters

Reasoning setup is no longer split across commands: /model is the primary interface to pick a model and configure that model's thinking and effort in one panel, which only shows supported options and persists them. On V2, bare /effort is legacy (deprecation warning, then Effort in /model) while /effort <level> still works, so default muscle memory should move to /model. On V3, /effort still opens its own picker, and you can start a cloud session before connecting a repository—run /repo when you want one, or continue from the connection screen with the repository marked optional if no source provider is linked. Adopting that order unblocks cloud work and keeps reasoning controls in one place. Do not infer extra behavior from the unnamed Improvements/Fixes/Patches sections.

Suggested actions

  1. In Kiro, run /model, select the model, then set thinking and effort in that same panel so only supported options appear and Kiro saves them for future sessions.
  2. On Kiro V2, stop using bare /effort (it warns and opens Effort in /model); use /model for reasoning settings, and keep /effort <level> only as an explicit shortcut.
  3. On Kiro V3, start a cloud session before connecting a repository, then run /repo when you are ready to attach one.
  4. If no source provider is connected and Kiro opens the connection screen, continue with the repository marked optional instead of blocking on a repo first.

After you finish

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Originating release signal

Kiro2.23.1Sep 23, 2026

Sep 23, 2026

September 21, 2026 Reasoning Controls and Cloud Sessions · 2.23.0 · Configure thinking and effort from /model and start V3 cloud sessions before connecting a repository. · This release brings reasoning controls into /model and lets V3 cloud sessions start before you connect a repository. · Improvements add clearer live progress, smoother streaming, and more efficient fullscreen scrolling. · Reliability fixes cover models, sessions, tools, and non-interactive runs. · Reasoning controls in /model · +17 more changes
Verified excerpt — the source's own words

September 21, 2026 Reasoning Controls and Cloud Sessions 2.23.0 Configure thinking and effort from /model and start V3 cloud sessions before connecting a repository. This release brings reasoning controls into /model and lets V3 cloud sessions start before you connect a repository. Improvements add clearer live progress, smoother streaming, and more efficient fullscreen scrolling. Reliability fixes cover models, sessions, tools, and non-interactive runs. Reasoning controls in /model Open /model to switch models and configure the selected model's thinking and effort in one place. The panel shows only the options supported by that model and saves your choices for future sessions. /model is now the primary interface for reasoning settings. In V2, bare /effort is a legacy command: it shows a deprecation warning and opens the Effort setting in /model ; /effort <level> remains supported. In V3, /effort continues to open its own picker. Learn more -> Cloud sessions before repository connection (V3)

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