Prompt: Jesse questioned whether the PR should remove the hooks config from the Codex plugin manifest.
Runtime investigation showed Codex accepts a committed plugin manifest with hooks and installs the plugin successfully. Removing the field changes behavior: Codex falls back to the default hooks/hooks.json, which uses the non-Codex session-start hook and CLAUDE_PLUGIN_ROOT path, instead of hooks/hooks-codex.json and the session-start-codex script.
Changes: restore .codex-plugin/plugin.json hooks to ./hooks/hooks-codex.json and update the Codex marketplace manifest test to require that Codex-specific hook pointer instead of rejecting hooks.
Validation: bash tests/codex/test-marketplace-manifest.sh; scripts/lint-shell.sh tests/codex/test-marketplace-manifest.sh; bash tests/codex-plugin-sync/test-sync-to-codex-plugin.sh; bash tests/kimi/test-plugin-manifest.sh; bash tests/shell-lint/test-lint-shell.sh.
Prompt: Jesse asked for a new worktree off the local superpowers dev branch to add the Codex manifest after diagnosing why github.com/obra/superpowers did not show installable Codex plugins.
Root cause: Codex marketplace sources expect a .agents/plugins/marketplace.json at the marketplace root. The superpowers repo only had the Claude marketplace file and the Codex plugin manifest, so Codex could configure the marketplace name but found no installable plugin entries.
Changes: add a repo-local Codex marketplace manifest for superpowers-dev that points at this same repository root via the same-root source pattern Codex already accepts; add a focused marketplace manifest test; remove the unsupported hooks field from .codex-plugin/plugin.json so the plugin validator accepts the manifest.
Validation: bash tests/codex/test-marketplace-manifest.sh; uv run --with PyYAML python /Users/jesse/.codex/skills/.system/plugin-creator/scripts/validate_plugin.py /Users/jesse/git/superpowers/superpowers/.worktrees/codex-marketplace-manifest; throwaway HOME codex plugin marketplace add/list/add; bash tests/codex-plugin-sync/test-sync-to-codex-plugin.sh; bash tests/kimi/test-plugin-manifest.sh; bash tests/shell-lint/test-lint-shell.sh; scripts/lint-shell.sh tests/codex/test-marketplace-manifest.sh.
