claudeMd
A Claude Code settings key, read out of the shipped bundle. It was in the build from v2.1.139 and was gone by v2.1.284.
Inject organization-wide CLAUDE.md instructions from managed settings
Anthropic's own wording. Read off All settings, captured 2026-10-22.
In the changelogs
11Releases whose published page names claudeMd.
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v2.1.300
Managed settings handle CLAUDE.md, the auto mode log and token checks differently in one mode
In one restricted mode, managed settings keep their
claudeMd, the auto mode decision log is skipped, and token checks refuse unanchored claimsfound in this entry's text
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v2.1.277
Project context loading now also reports plugin instruction file stats
Project context loading now always reports plugin instruction file counts and total size
found in this entry's text
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v2.1.275
context_claude_md_load pipeline restructured around instructionFiles caching
Loading CLAUDE.md project context now reuses cached text when instruction files haven't changed
found in this entry's text
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v2.1.268
claudeMd block now always sent to model, even when empty
The claudeMd block is now always included in what's sent to the model, even when there's no content
found in this entry's text
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v2.1.261
Detailed prompt-cache-break diagnostics (message0 shape/section diffing) sampled off by default
Detailed prompt-cache-break diffing telemetry exists but is sampled at zero by default.
found in this entry's text
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v2.1.259
Prompt context blocks now pass through a resolver/invalidator pipeline before assembly
User context is assembled into named blocks and passed through a resolver that can rewrite it; by default it passes through untouched.
found in this entry's text, named in this entry
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v2.1.252
claudeMd now explicitly emitted as empty string under carved-slate mode
Under an experimental mode, empty CLAUDE.md content is now sent as an explicit empty string to keep prompt caching stable.
found in this entry's text
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v2.1.248
Sandbox summary rows are grouped by category
The sandbox summary is now grouped into commands, environment variables and markers.
found in this entry's text
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v2.1.235
Remote-delivered managed settings get stricter path and payload rules
Remote-delivered managed settings now reject risky helper paths and inline scripts, and strip claudeMd
found in this entry's text
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v2.1.232
Warnings when policy helper settings are nested in the wrong place
Settings validation now warns when policy helper keys are nested where nothing reads them.
found in this entry's text
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v2.1.136
Enterprise Managed Settings Helper
found in this entry's text
First cited
3The earliest release whose published evidence quoted claudeMd was v2.1.252, 31 Aug 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.
Presence across releases
2Build by build
148One row per release since the first build this name was read out of. Absent means the build was read and the name was not in it, never mined means no bundle for that release was ever archived, and a declared type or a default is only ever what that release's own bundle stated.
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 settings key does. All settings keys.