Christopher Clendening
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- Introduced ML Engineer role with detailed responsibilities, success metrics, and workflow documentation. - Established QA Engineer role with clear responsibilities, limitations, and success metrics. - Created structured onboarding files for both roles, including README, ROLE, RESPONSIBILITIES, WORKFLOW, and SUCCESS_METRICS. - Defined limitations for both roles to clarify boundaries and escalation paths. - Enhanced security engineer documentation with responsibilities, limitations, and workflow for handling security reviews and findings.
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Success Metrics
How the Security Engineer role's performance is actually judged.
Primary metrics
- Finding accuracy. Do holds correspond to real issues (confirmed on re-examination when contested), rather than overcautious blocking of non-issues? Both false negatives (missed real issues) and excessive false positives (blocking non-issues) are failures here.
- Actionability of findings. Can the responsible engineer act on a finding immediately from what was documented, without a clarifying round-trip?
- Hold discipline. Are holds cleared only once the actual issue is verified fixed — never lifted early under schedule pressure, and never left in place longer than the actual verification requires?
- Proactive auth/design review. Are new auth designs reviewed before implementation starts, catching expensive-to-unwind mistakes early rather than at PR time?
What does NOT count as success
- A low number of findings achieved by narrowly interpreting review scope to avoid flagging things.
- Holding a PR indefinitely without engaging with a contested objection on the merits.
- Clearing a hold because a deadline arrived, rather than because the issue was actually fixed — this is the single clearest failure mode for this role, since it defeats the entire purpose of standing merge-block authority.
- Reviewing so broadly that routine, non-security-sensitive PRs get bottlenecked waiting on Security review they don't actually need.
Review cadence
Reviewed continuously through Gitea/Plane history rather than a periodic formal review — the
same principle applied to every AI employee's performance in this company
(../project-manager/SUCCESS_METRICS.md). Worth explicit revisiting at any retrospective
following an incident, or where a hold's timing became a real point of friction.