fix: stringify object params when repopulating tool input form

@zen-agentchecks n/achecks…zen/fix-object-param-display-6xp2fr → main1 files · +15 −1updated 3mo ago

▸Description· 1 comment · 2 noise

Description

Fix a bug where object/array parameters in the tool execution side panel display as [object Object] after running a tool and navigating back to edit params.

Root cause: When a tool is executed with object/array params, the form submission parses JSON strings into JS objects (JSON.parse(value)). These parsed objects are stored and passed back as the data prop to ToolInputForm. The useForm hook received these raw objects as defaultValues, and when React renders them in <Input> elements, it calls .toString() → [object Object].

Fix: Sanitize the data prop by JSON.stringify-ing any object/array values before passing to useForm as defaultValues, so the form correctly displays editable JSON text.

How did I test this PR

pnpm lint — 0 errors (328 pre-existing warnings)
pnpm build — passes successfully

Triggered by: dhawal@composio.dev | Source: slack Session: https://zen-api-production-4c98.up.railway.app/dashboard/#/chat/zen-6799895005cc

@zen-agent3mo ago

PR Status Update

Codex Review

Result: LGTM — "The change safely sanitizes object/array default values into JSON strings for form inputs and does not introduce any clear regressions."

CI Status

All 9 checks passed: lint, typecheck, playwright tests (4 shards), merge-reports, Vercel preview

Testing

pnpm lint — 0 errors (328 pre-existing warnings)
pnpm build — passes successfully
Unit tests: 9/9 pass verifying sanitizedData logic (object stringify, array stringify, string/number/boolean/null passthrough, mixed params, undefined data, round-trip integrity)
Round-trip test: confirms execute → go back → re-execute preserves data integrity
Visual verification: authenticated into local frontend, navigated to playground (tool listing API had backend 500s preventing full E2E click-through, but component logic verified via tests)

PR Comments

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@vercel[bot]3mo ago

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Project	Deployment	Actions	Updated (UTC)
platform-frontend	Ready	Preview, Comment	Mar 11, 2026 6:43am

@github-actions[bot]3mo ago

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