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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 / Feature flags

tengu_oauth_refresh_invalid_scope_fallback

flag never mined JSON

A Claude Code feature flag, read out of the shipped bundle. No mined inventory carries it: everything below comes from what this site has written about it.

If a server rejects the new expanded OAuth scope request, Claude Code retries once with the old scopes

Not Anthropic's. This is the line from the earliest changelog entry here that named it, v2.1.269.

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 v2.1.269 first named in a changelog, 11 Sep 2026

In the changelogs

2

Releases whose published page names tengu_oauth_refresh_invalid_scope_fallback.

  1. v2.1.269
    Refresh retries once with the full scope set if the server rejects an expanded scope request

    If a server rejects the new expanded OAuth scope request, Claude Code retries once with the old scopes

    gate cited by this entry

  2. v2.1.269
    OAuth refresh now tracks whether the plugins scope was requested/granted, with automatic downgrade retry on invalid_scope

    OAuth token refresh now requests a plugins scope and retries without it if the server rejects the scope

    gate cited by this entry

Gate readings

0

No release here has a gate table behind it for this flag. Most published releases have none at all: the readings exist only for versions the pipeline captured flag state on.

First cited

1

The earliest release whose published evidence quoted tengu_oauth_refresh_invalid_scope_fallback was v2.1.269, 11 Sep 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
v2.1.26911 Sep 2026tengu_oauth_refresh_invalid_scope_fallback

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 feature flag does. All feature flags.

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