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Sweep 22 Oct 2026 · 04:32Z Build v2.1.308 527 read Stable v2.1.308 Latest v2.1.308 Next v2.1.308 Feeds RSS JSON llms.txt llms-full.txt Unofficial
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TaskCompleted

hook never mined documented JSON

A Claude Code hook event, read out of the shipped bundle. No mined inventory carries it: everything below comes from what this site has written about it.

When a task is being marked as completed

Anthropic's own wording. Read off Hooks reference, captured 2026-10-22.

First seen — never in a mined build
Last seen — never in a mined build
Builds0 / 149on this box, as of v2.1.308
Written about v2.1.33 first named in a changelog, 6 Feb 2026

In the changelogs

8

Releases whose published page names TaskCompleted.

  1. v2.1.295
    Hooks can now block the action when they fail

    A new hook option set to block makes a hook that fails, times out or returns bad output stop the action it guards

    found in this entry's text

  2. v2.1.248
    New hook events and compiled-in plugin admission defaults

    Three new hook event names appear, and unverified plugins are still allowed to load.

    named in this entry, found in this entry's text

  3. v2.1.236
    Some hook events take a separate dispatch path

    Six hook events now wait on a readiness step before running; the rest are unchanged.

    found in this entry's text

  4. v2.1.223
    Hook-feedback meta messages identified by hook name instead of a line suffix

    Your own messages won't be mistaken for hook feedback just because they end with a marker.

    found in this entry's text

  5. v2.1.223
    Only four hook types produce non-user content

    Only Stop, TeammateIdle, TaskCreated and TaskCompleted hooks are treated as internal; other hook feedback reads as your text.

    named in this entry, found in this entry's text

  6. v2.1.69
    New Hook Events

    found in this entry's text

  7. v2.1.64
  8. v2.1.33
    TeammateIdle and TaskCompleted Hooks

    found in this entry's text

First cited

2

The earliest release whose published evidence quoted TaskCompleted was v2.1.64, 3 Mar 2026. That is the oldest release this project wrote about it, so it is a floor on the name's age and not the release that introduced it. It is not a presence reading: which builds carried the name is the table below.

ReleaseDateThe span that was quoted
v2.1.643 Mar 2026TaskCompleted hook prevented continuation
v2.1.2235 Aug 2026sry = ["Stop", "TeammateIdle", "TaskCreated", "TaskCompleted"]

Presence across releases

0

The miner has never read a build containing this name. It is here because a changelog entry of ours names it, which is evidence that it existed and not evidence of which releases carried it. The inventory starts at v2.1.138 and everything older than that was never mined.

Read out of the published npm bundle release by release, and out of Anthropic's own documentation as this site captured it. Nothing on this page is a description anybody here wrote about what the hook event does. All hook events.

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