Source Intelligence
Sweep 28 Aug 2026 · 00:00Z Build v2.1.250 478 read Stable v2.1.236 Latest v2.1.250 Next v2.1.251 Feeds RSS JSON llms.txt
Reading a new release v2.1.251 Analysing changes · 2/5 Analysis pass · 20/27 agents ~1-2 min left 295 findings $8.76 so far

DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

Reference / CLI flags

--mocks

A Claude Code CLI flag, read out of the shipped bundle. It has been in the build since v2.1.242, including the newest one read.

What it is

Plugin evals can swap a plugin's MCP servers for fakes defined in a mocks folder.

Not Anthropic's. This is the line from the earliest changelog entry here that named it, v2.1.242.

Presence across releases

ReleasesReadingDeclared typeDefault
2.1.245 – 2.1.250 5 releases never mined
2.1.242 – 2.1.243 2 releases in the build

A row reading never mined is a release with no archived bundle behind it. Nothing was read out of it, so nothing here says whether the name was in it. A declared type or a default is only ever what that release's own bundle stated.

Changelog entries naming it

  1. v2.1.242plugin eval can mock a plugin's MCP servers, with docs to match

    Plugin evals can swap a plugin's MCP servers for fakes defined in a mocks folder.

    named in this entry

  2. v2.1.242Eval graders can inspect calls made to mock tools

    Eval graders can inspect the calls that hit mock tools during a run.

    named in this entry

  3. v2.1.242Eval runs fail loudly when managed policy blocks the mock servers

    Eval runs stop with a clear policy error when your org's MCP rules block the mock servers.

    named in this entry

Documentation pages

None of Anthropic's documentation pages this site has a copy of carries this name.

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 CLI flag does. All CLI flags.