fix(desktop): stop create-agent form clobbering provider config on keystroke - #3220
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fix(desktop): stop create-agent form clobbering provider config on keystroke#3220IceRhymers wants to merge 1 commit into
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IceRhymers
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July 27, 2026 22:43
…ystroke The provider-probe effect in WhereToRunSection listed the whole `draft` in its dependency array, so every keystroke in ProviderConfigFields produced a new draft, re-ran the probe, and overwrote `providerConfig` with schema defaults on resolve. Any config_schema field with a `default` snapped back to it (fields without one were wiped), making non-default values impossible to enter from the UI. Guard against re-probing once a provider has been probed (a provider switch still resets the draft to emptyWhereToRunDraft, so a fresh probe fires then), and seed defaults without overwriting values the user already typed so a late-resolving probe can't erase input. Fixes block#3216 Signed-off-by: Tanner <84605639+IceRhymers@users.noreply.github.com>
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What
Fixes the create-agent form resetting provider
config_schemafields to their schema defaults (or wiping them) on every keystroke, which made non-default values impossible to enter from the UI.Fixes #3216.
Root cause
In
desktop/src/features/agents/ui/WhereToRunSection.tsx, the provider-probeuseEffectlisted the entiredraftin its dependency array. Every keystroke inProviderConfigFieldscallsonDraftChange({ ...draft, providerConfig }), producing a newdraft→ the effect re-fires → the probe re-runs → on resolve it overwritesproviderConfigwith defaults rebuilt fromconfig_schema. Against a fast local provider binary the probe is near-instant, so the field appears to reset on the keystroke itself.Fields with a
defaultsnapped back to it; fields without one were wiped to empty. It's also a churn bug — one provider probe per keystroke.Fix
if (draft.probedProvider) return;so the probe runs once per selection instead of on every draft change. Switching providers still re-probes correctly, because the "Run on"<select>resets the draft toemptyWhereToRunDraft(probedProvider: null).providerConfig: { ...defaults, ...draft.providerConfig }so a late-resolving probe can never erase values the user already typed (defense-in-depth).Testing
just desktop-typecheck— passjust desktop-test— passjust desktop-check(Biome) — no findings on changed sourceTesting against custom provider
Evidence of the fix, vs the video in #3216
Screen.Recording.2026-07-27.at.3.39.10.PM.mov
Notes
Discovered while building an out-of-tree backend provider (Databricks sandbox / Lakebox) that advertises a defaulted
inference_authfield which couldn't be switched away from its default via the UI. No provider-side workaround exists — the reset is entirely client-side.