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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
Home / Reference / Hook events

InstructionsLoaded

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 CLAUDE.md or .claude/rules/*.md file is loaded into context. Fires at session start and when files are lazily loaded during a session

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 v2.1.64 first named in a changelog, 3 Mar 2026

In the changelogs

3

Releases whose published page names InstructionsLoaded.

  1. v2.1.265
    InstructionsLoaded fallback check via sbe()

    Claude Code now checks a fallback source to detect if InstructionsLoaded hooks are configured

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

  2. v2.1.69
    New Hook Events

    found in this entry's text

  3. v2.1.64
    InstructionsLoaded Hook Event

    found in this entry's text

First cited

2

The earliest release whose published evidence quoted InstructionsLoaded 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 2026InstructionsLoaded
v2.1.2658 Sep 2026return sbe("InstructionsLoaded")

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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