Address review feedback: require issued_at field and prevent refresh stampede#107

Merged

anna-singleton-resolver merged 13 commits intofeature/dynamic-refreshfrom

copilot/sub-pr-103

Feb 23, 2026

Commits on Feb 20, 2026

Initial plan
Copilot
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Implement background token refresh for old tokens

Copilot
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iwillspeak
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fix: update tests to match preserved token scheme casing

Copilot
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iwillspeak
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Address code review feedback

Copilot
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iwillspeak
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Address PR review comments

Copilot
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iwillspeak
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Revert Bearer/DPoP test assertion changes from c50327d

Copilot
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anna-singleton-resolver
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fix: start refresh thread checks for already refreshed token
anna-singleton-resolver
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chore: remove extraneous comment
anna-singleton-resolver
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feat: reduce eagerness of background refresh from at 50% remaining to 25% remaining
anna-singleton-resolver
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doc: update is_old docstring
anna-singleton-resolver
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Commits on Feb 23, 2026

fix: correct boolean logic in _start_background_refresh

Copilot
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iwillspeak
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test: fix test assertions to be on 25% instead of 50%
anna-singleton-resolver
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feat: allow configurable proactive_refresh_threshold
anna-singleton-resolver
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