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Sweep 22 Sep 2026 · 17:19Z Build v2.1.280 501 read Stable v2.1.267 Latest v2.1.280 Next v2.1.280 Feeds RSS JSON llms.txt Unofficial
Reference Feature flags
One name

tengu_config_fallback_skipped_contention

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.

Familyfeature flagFeature flags
Builds0of the 123 on this box
First seen — never in a mined build
Last seen — never in a mined build
Statusnever minedas of v2.1.280

What it is

Saving or deleting config now retries with backoff when the lock is held instead of failing outright.

Not Anthropic's. This is the line from the earliest changelog entry here that named it, v2.1.259.

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.

First cited

1

The earliest release whose published evidence quoted tengu_config_fallback_skipped_contention was v2.1.259, 2 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 above.

ReleaseDateThe span that was quoted
v2.1.2592 Sep 2026tengu_config_fallback_skipped_contention

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.

Names beside it

Every feature flag in the inventory starting tengu_config, up to twelve of them.

tengu_config_auth_loss_preventedA second global-config writer goes through the storage backend with better corruption handling. never mined tengu_config_auto_repairedNo description from anybody. never mined tengu_config_changedPlugin-provided settings now appear in /config, with their values redacted in telemetry never mined tengu_config_lock_contentionThe settings lock contention counter stops counting unrelated storage failures. never mined tengu_config_parse_errorKeychain lookups fail quietly instead of crashing, and unparseable config files now get reported. never mined tengu_config_stale_writeA second global-config writer goes through the storage backend with better corruption handling. 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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