Ecosystem Update - 2026-05-21

May 21, 2026 · curated by Chad Simon · 16 items reviewed

Highlights

No Tier 1 source had commits since the 2026-05-20 run, but live search surfaced a Codex-native hook catalog and the official hook docs now confirm UserPromptSubmit as a supported turn-scoped event
Safe Quick Win applied: wired the existing local prompt classifier to UserPromptSubmit, so route hints are generated before each turn without logging raw prompts
The next worthwhile harness work is not wholesale skill import; it is a focused hook contract pass for apply_patch, PermissionRequest, and stop-gate output shapes

UserPromptSubmit route classifier hook hook

developers.openai.com

Wire existing /Users/chadsimon/.codex/bin/classify_prompt.py into /Users/chadsimon/.codex/hooks.json

Stop-gate output-shape repair before wiring hook

developers.openai.com

Fix and test those outputs before adding them to Stop
apply_patch hook coverage audit hook

developers.openai.com

OpenAI Codex hooks docs, am-will/codex-skills hook catalog - Current PostToolUse coverage is Bash-only, while Codex now documents apply_patch/Edit/Write matcher compatibility. Audit whether existing verification/failure-context scripts should observe file-edit events or whether a separate edit-specific hook is needed
PermissionRequest conservative-profile miner hook

howborisusesclaudecode.com
Codex hook catalog intake skill

github.com/am-will/codex-skills

am-will/codex-skills, hook catalog README - Evaluate the 51-bundle hook catalog one bundle at a time against the local trust model; consider only local, credential-free guards such as secret scanning, file protection, and scope/TDD gates
Hook parity event matrix watch

github.com/openai/codex

openai/codex issue #21753 - Track PermissionRequest, PostToolUseFailure, SubagentStart/Stop, TaskCreated/Completed, and PostCompact so local harness assumptions do not drift from the shipped event surface
Recap/focus-mode local status intake agent-pattern

howborisusesclaudecode.com

How Boris Uses Claude Code - Codex already has goals, subagents, and session state, but returning-to-session summaries could be improved through existing state files before adding any dashboard

Full Claude Code Hook Parity (29+)

github.com/openai/codex

- Useful as a watchlist for future Codex hook events and handler types; current local hooks should stay conservative until events are shipped and documented
Codex Hook Catalog

github.com/am-will/codex-skills

- New community catalog has breadth, but the safe value is selective adaptation of tested local hook bundles rather than wholesale installation
Tier 2 arXiv scan was skipped because tier2_last_run was 2026-05-20T10:33:24Z and this run began at 2026-05-21T10:30:41Z, just under the 24-hour threshold.

Items reviewed and explicitly declined this cycle, with the reason. Curation discipline matters more than coverage.

Wholesale install am-will/codex-skills — - rejected because it imports many skills/hooks and some require credentials, new tools, or new scripts; use audited single-bundle intake instead
Enable plugin_hooks automatically — - rejected because plugin-bundled hooks are executable code and still need trust review before global enablement
Add prompt logging through UserPromptSubmit — - rejected because global prompt telemetry must remain opt-in; today's hook stores only route classification, not raw prompts
Wire stop-gate scripts immediately — - rejected for today because the existing scripts need output-shape repair against the current documented Stop hook contract
Enable native Codex memories automatically
Edit AGENTS.md as a Quick Win — - rejected by the ecosystem-update hard limit; constitutional policy changes require explicit direction