chore(main): release 1.20.16

[agents-workflows-bot]

🤖 I have created a release beep boop

1.20.16 (2026-08-09)

Bug Fixes

• agents: exempt closed issues from the format guard (#2997) (e442592)
• agents: harden format guard review findings (#2995) (b9c8ac4)
• agents: make the optimizer recursion guard actually correlate runs (#2993) (54d8b9e)

---

This PR was generated with Release Please. See documentation.

[stranske-keepalive]

Automated Status Summary

Head SHA: 498dc15
Latest Runs: ⏳ pending — Gate
Required contexts: summary
Required: core tests (3.12): ⏳ pending, core tests (3.13): ⏳ pending, docker smoke: ⏳ pending, gate: ⏳ pending

Workflow / Job	Result	Logs
(no jobs reported)	⏳ pending	—

Coverage Overview

• Coverage history entries: 0

Updated automatically; will refresh on subsequent CI/Docker completions.

---

Keepalive checklist

Scope

No scope information available

Tasks

• No tasks defined

Acceptance criteria

• No acceptance criteria defined

[agents-workflows-bot]

🤖 Created releases:

• v1.20.16

🌻