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feat(engine): idempotency#4045

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mrkaye97 merged 114 commits into
mainfrom
mk/feat-idempotency
Jul 16, 2026
Merged

feat(engine): idempotency#4045
mrkaye97 merged 114 commits into
mainfrom
mk/feat-idempotency

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@mrkaye97

@mrkaye97 mrkaye97 commented May 29, 2026 •
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Description

Adds support for user-facing idempotency configuration on tasks and workflows, to enable e.g. duplicate event pushes to not trigger duplicate tasks. Idempotency is configured on the task / workflow, and then collisions raise an error (which can be handled) on the SDKs when they occur on the trigger path. On the event path, the runs that would've been triggered are dropped.

Fixes #3673

Type of change

  • New feature (non-breaking change which adds functionality)

Checklist

Changes have been:

  • Tested (unit, integration, or manually with steps specified)
  • Linted and formatted
  • Documented (where applicable)
  • Added to CHANGELOG (where applicable) -- see Keep a Changelog
🤖 AI Disclosure
  • I acknowledge that an LLM was used in the creation of this Pull Request, in accordance with Hatchet's AI_POLICY.md.
  • Details: Used Claude Code for generating the other three SDKs after implementing Python, and for wiring up some API logic

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vercel Bot commented May 29, 2026 •
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Project Deployment Actions Updated (UTC)
hatchet-docs Ready Ready Preview, Comment Jul 16, 2026 3:37pm

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@github-actions github-actions Bot added sdk-py Related to the Python sdk engine Related to the core Hatchet engine labels May 29, 2026
@mrkaye97 mrkaye97 mentioned this pull request Jul 15, 2026
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@github-actions

github-actions Bot commented Jul 15, 2026

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⚠️ Optional test failure: The load-deadlock job failed on this PR (optimistic-scheduling=false). This check is non-mandatory and does not block merging, but may be worth investigating. View logs

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github-actions Bot commented Jul 15, 2026

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⚠️ Optional test failure: The load-deadlock job failed on this PR (optimistic-scheduling=true). This check is non-mandatory and does not block merging, but may be worth investigating. View logs

@mrkaye97
mrkaye97 requested a review from abelanger5 July 15, 2026 17:31
@mrkaye97

mrkaye97 commented Jul 15, 2026

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@abelanger5 responded with a couple questions, and think I got all the other feedback fixed

@github-actions

github-actions Bot commented Jul 16, 2026

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⚠️ Optional test failure: The load-deadlock job failed on this PR (optimistic-scheduling=false). This check is non-mandatory and does not block merging, but may be worth investigating. View logs

@github-actions

github-actions Bot commented Jul 16, 2026

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⚠️ Optional test failure: The load-deadlock job failed on this PR (optimistic-scheduling=true). This check is non-mandatory and does not block merging, but may be worth investigating. View logs

@mrkaye97
mrkaye97 merged commit 34c8b92 into main Jul 16, 2026
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dashboard Related to the Hatchet dashboard documentation Improvements or additions to documentation engine Related to the core Hatchet engine sdk-go Related to the Go SDK sdk-py Related to the Python sdk sdk-ruby Related to the Ruby SDK sdk-ts Related to the Typescript SDK

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[FEAT] User-configurable idempotency keys

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@mrkaye97 @promptless-for-oss @abelanger5