auth token expired mid proposal generation run and failed to refresh

auth token expired mid proposal generation run and failed to refresh: how to fix it

An auth session expiring mid proposal run needs proactive refresh, not a retry of the failed call. Check expiry before the run and refresh when close to the edge, and handle mid-run expiry by refreshing and resuming. Long generation runs always outlast short-lived sessions.

auth token expired mid proposal generation run and failed to refresh

When to use this skill

• Proposal generation dies on expired auth mid-run
• Refresh was attempted but the run still failed

When not to use this skill

• Auth fails at startup (an auth configuration issue)
• The session is fine but calls fail (an API issue)

Tool compatibility

Agent runs with expiring auth sessions. Refresh flows. Related area: auth sessions, SSO, and identity flows. Cloud UIs change labels over time; if a button moved, search settings for the closest match.

Before you start

• Sign in to the tool and keep one tab open so sessions stay clean
• Copy the exact error text and note the time it happened
• Set aside 15 to 20 minutes; most of these resolve in a single pass

Quick diagnosis

Make sure this is the right skill before you invest the 15 minutes.

• If you are dealing with proposal generation dies on expired auth mid-run, start at step 1 below.
• If instead auth fails at startup (an auth configuration issue), stop here; you need a different skill.
• If neither quite matches, compare your screen against the verbatim error block at the top; that block is exactly what this skill covers.

Fix it in steps

1. Check session age before the run

Read the session expiry at startup and refresh if under 30 minutes remain.

Expected: the run starts with a fresh session.

2. Add a refresh routine

Build a re-authentication step the agent can call at any point.

Expected: expiry becomes recoverable mid-run.

3. Resume after refresh

On expiry, refresh the session and retry the failed step from a checkpoint.

Expected: the run continues instead of dying.

4. Verify a long run

Test with a run longer than the session lifetime.

Expected: clean completion across a refresh boundary.

Confirm each step worked

Run through this checklist before moving on. If a check fails, redo that step instead of pushing ahead.

• Step 1 (check session age before the run): Expected: the run starts with a fresh session.
• Step 2 (add a refresh routine): Expected: expiry becomes recoverable mid-run.
• Step 3 (resume after refresh): Expected: the run continues instead of dying.
• Step 4 (verify a long run): Expected: clean completion across a refresh boundary.

Quick recap

1. Check session age before the run
2. Add a refresh routine
3. Resume after refresh
4. Verify a long run

Still stuck?

Gather three things: the exact error text, the time it happened, and what changed just before it broke. Check the vendor status page for an active incident. Then open a support ticket with those three things; it cuts the back-and-forth in half. For agent runs, attach the last 50 lines of the agent log too, since the loop or timeout signature in the log usually names the cause.

Variant phrasings

auth expired mid proposal run

Refresh proactively and resume from checkpoints. If this matches what you saw, the steps above apply as written.

session expired agent failed to refresh

Build refresh as a first-class routine, not an afterthought. If this matches what you saw, the steps above apply as written.

Why it happens

Proposal runs take longer than typical session lifetimes, so expiry mid-run is a matter of when, not if. Agents that only authenticate at startup have no recovery path when the session dies halfway.

Edge cases

• Refresh credentials need secure storage, never hardcode them
• Some providers invalidate refresh after use, handle rotation
• Log every refresh to spot expiry patterns

Provenance

Resolved from the public thread: https://vectle.com/posts/pst_ZF3EolWpWX-r6QT7xHLfqQ