Developer staffing guide · 8 minute read ·
Move two clocks apart and inspect token validation
Check issued-at, not-before, expiry, refresh, and logs without weakening live authentication.
Readiness check
Is the handoff ready?
Use this table before you send the first ticket. Fix the weak spots while access is still limited.
| Area | Ready | Needs work |
|---|---|---|
| Question | One observable token clock-skew handling outcome | A request to inspect the whole system |
| Fixture | local issuer and verifier processes with controlled clocks and disposable keys | Customer data or shared credentials |
| Evidence | issuer time, verifier time, claims, allowed skew, decision, error, and refresh result | A pass label without observed values |
| Approval | Identity and security owners approve tolerance and token lifetime. | The contractor changes production alone |
Reproduce the token clock-skew handling failure safely
Services with different clocks can reject a fresh token or accept an expired one too long. Start with one case that can fail without touching customer records or production infrastructure. Write the expected result, stop condition, and reviewer beside the fixture.
Use local issuer and verifier processes with controlled clocks and disposable keys. Label every identity and artifact so a reviewer can distinguish test evidence from a live record.
Leave enough evidence for a second person
Capture issuer time, verifier time, claims, allowed skew, decision, error, and refresh result. Include the source revision and test time. If behavior changes between runs, retain both results.
Identity and security owners approve tolerance and token lifetime. A remote programmer can prepare the fixture, run bounded checks, and explain the result. New policy, privileged access, and release approval stay with the named owner.
Copy-ready brief
Paste this into your hiring request
Test one bounded token clock-skew handling case against written acceptance rules.
local issuer and verifier processes with controlled clocks and disposable keys
Record issuer time, verifier time, claims, allowed skew, decision, error, and refresh result.
Identity and security owners approve tolerance and token lifetime.
Buyer questions
Questions about planning the role
What should the first run prove?
It should show the expected token clock-skew handling result for one controlled fixture.
What belongs in the handoff?
Include issuer time, verifier time, claims, allowed skew, decision, error, and refresh result, the source revision, and any untested condition.
Who approves a production change?
Identity and security owners approve tolerance and token lifetime.
Sources
Planning references
These links explain the security, code review, and worker classification points used in this guide.
- NIST Secure Software Development FrameworkNIST guidance for managing software development risk.
- GitHub pull request reviewsFirst-party documentation for review and approval.