Source Intelligence

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.

All of v2.1.236 Home All releases olderv2.1.235 v2.1.237newer
Claude Code v2.1.236

Host-supplied context lines in the safety classifier, with live and restored trust levels

You'll notice
Useful3 Signal5
Permissions Notable

The safety classifier now sees notes from the hosting app, treating live ones as possible user consent.

Feature flag
tengu_disable_live_host_context Off in both readings

The flag server returned off for the account this site reads and for the anonymous baseline. A reading of off cannot rule out a rollout these two readings sit outside of.

This account: off · anonymous baseline: off · compiled default in v2.1.236: on

Read once, for one account on one subscription tier, against v2.1.236. It isn't a statement about your account. What a flag value here can and cannot tell you

What

The application hosting the agent can attach a note after a tool result, and the safety classifier now sees it as its own transcript line. Two kinds exist: host_context_live, attached during this session, which may relay real user input and can satisfy a soft block's consent requirement, and host_context, restored from saved session state, which never establishes user intent. The classifier prompt describes both. Emission of the live variant has a kill switch, tengu_disable_live_host_context.

Details
  • Notes reach the transcript from a post-tool hook or an in-process tool return.
  • Entries are fed to the classifier as { type: "host_context", ..., context, live }.
  • The prompt text, both keys, and the entry shape are all absent from 2.1.235.
Evidence

tengu_disable_live_host_context, EVa = "host_context_live"

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

See this entry in the whole of v2.1.236 →