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 v2.1.248 Home All releases olderv2.1.247 v2.1.250newer
Claude Code v2.1.248

Partial-message bridge moved onto a new gate, off by default

Not switched on
Useful1 Signal3
Sessions

Partial-message bridging moved to a new flag that is off by default.

tengu_bridge_partial_messages falls back to false.

Feature flag
tengu_kairos_loop_dynamic On for this account, and not off by default

The flag server returned on for the one account this site reads, and nothing in this release compiles it off by default. The compiled default is shown below, and says which it is when we cannot read one: a fifth of gates compile in a string or a number rather than on or off, and most published releases have no gate table behind them at all. No client can see what the server returns for your account.

This account: on · anonymous baseline: on · compiled default in v2.1.248: not a boolean we can read

tengu_bridge_partial_messages Not enough to say

Nothing here resolved what this flag was doing on this version, so nothing here should be read as on or off.

This account: no value returned · anonymous baseline: no value returned · compiled default in v2.1.248: on

Read once, for one account on one subscription tier, against v2.1.248. It isn't a statement about your account. What a flag value here can and cannot tell you

What

A code path that used to be controlled by the tengu_kairos_loop_dynamic flag is now controlled by tengu_bridge_partial_messages. Its built-in fallback is false, so unless Anthropic's remote config sends a value, the partial-message bridging path stays off.

Evidence

return x("tengu_bridge_partial_messages", !1);

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

See this entry in the whole of v2.1.248 →