## This PR The original [combined remote plugin analytics PR #26281](https://github.com/openai/codex/pull/26281) mixed reusable analytics test infrastructure, two manual smoke workflows, a metadata refactor, and the final identity behavior. This PR isolates the generic capture mechanism so it can be reviewed and landed before any plugin-specific behavior. - Add a debug-only analytics destination that writes final request payloads as JSONL. - Suppress HTTP delivery whenever capture mode is selected, including after capture write failures. - Keep release behavior unchanged even when the capture environment variable is present. - Keep the mechanism generic; this PR contains no plugin-specific behavior. Set `CODEX_ANALYTICS_EVENTS_CAPTURE_FILE=/path/events.jsonl` when running a debug Codex binary to inspect the exact batched payload that would otherwise be sent to the analytics endpoint. ## Testing - `just test -p codex-analytics` (76 passed) - `just test --release -p codex-analytics` (73 passed) - CI is green across the required platform matrix. ## Split Overview ```text main ├── #27093 Debug analytics capture ← you are here │ └── #27099 Non-mutating plugin smoke │ └── #27100 Remote install/uninstall smoke └── #27102 Plugin telemetry metadata refactor After #27093, #27099, #27100, and #27102 merge: └── Final PR: add remote_plugin_id to plugin analytics ``` Review order and dependencies: 1. [#27093 Add debug-only analytics event capture](https://github.com/openai/codex/pull/27093) **(this PR, based on `main`)** 2. [#27099 Add a plugin analytics smoke workflow](https://github.com/openai/codex/pull/27099) (stacked on #27093) 3. [#27100 Add a remote plugin analytics mutation smoke workflow](https://github.com/openai/codex/pull/27100) (stacked on #27099) 4. [#27102 Centralize plugin telemetry metadata construction](https://github.com/openai/codex/pull/27102) (independent, based on `main`) 5. Final remote-ID behavior PR (created after PRs 1-4 merge) The original [#26281](https://github.com/openai/codex/pull/26281) remains open as the green aggregate reference until the final PR is published.
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