Codex Upcoming Features

Overview

Sync a durable local clone of openai/codex and produce an exhaustive summary of unreleased features and notable improvements since the latest stable (non-prerelease) release tag.

Primary evidence comes from source files that define feature stages and user-facing metadata. Commit/PR analysis is secondary supporting context.

Workflow

1. Run gh auth status and fail closed if GitHub CLI is not authenticated.
2. Resolve durable local clone path:

• default: $CODEX_HOME/repos/<owner>-<repo> (fallback: ~/.codex/repos/<owner>-<repo>)
• override: --local-repo <path>

3. If clone is missing, clone from https://github.com/<owner>/<repo>.git.
4. Sync local clone on every run (git fetch --tags --prune origin, checkout default branch, git pull --ff-only).
5. Mine these source files on every run (fail closed if missing):

• codex-rs/core/src/features.rs
• codex-rs/tui/src/chatwidget.rs
• codex-rs/core/src/codex.rs
• codex-rs/app-server/src/codex_message_processor.rs
• codex-rs/app-server-protocol/src/protocol/v2.rs
• codex-rs/app-server-protocol/schema/json/v2/ExperimentalFeatureListResponse.json
• codex-rs/app-server/README.md
• codex-rs/tui/src/tooltips.rs
• announcement_tip.toml

6. Extract source-derived upcoming feature data from features.rs:

• Stage::Experimental (beta/user-facing now)
• Stage::UnderDevelopment (upcoming but not broadly ready)
• include name, menu_description, and announcement where available

7. Extract structured supporting evidence from each other mined source file (UI wiring, app-server mapping, protocol enum/schema, docs contract, tooltip/announcement pipeline).
8. Record analyzed commit SHA from synced local clone (git rev-parse HEAD) and include it in output.
9. Resolve repo default branch and latest stable release tag (exclude draft/prerelease).
10. Compute unreleased range from local git history: stable_tag..origin/default_branch.
11. Classify each unreleased commit into one of:

• feature
• notable_improvement

12. Exclude entries that are clearly non-user-impacting (for example docs/chore/test-only).
13. Emit an exhaustive report with:

• UTC as-of timestamp
• local repo path used
• analyzed commit SHA
• stable baseline tag and compare link
• source files mined
• source-derived feature list (primary)
• cross-file source evidence (primary)
• per-item PR/commit evidence links

Commands

Run markdown summary (default):

uv run python scripts/summarize_upcoming.py --repo openai/codex

Run JSON output:

uv run python scripts/summarize_upcoming.py --repo openai/codex --output json

Override baseline tag if needed:

uv run python scripts/summarize_upcoming.py --repo openai/codex --base-tag rust-v0.106.0

Override durable local clone path:

uv run python scripts/summarize_upcoming.py --repo openai/codex --local-repo ~/workspace/cache/openai-codex

Output Contract

Always include:

• As of (UTC) timestamp
• local repo path used for summarization
• analyzed commit SHA
• Stable baseline tag
• compare URL
• source files mined
• source-derived upcoming feature sections (beta + underDevelopment)
• source-derived cross-file evidence section covering all required files
• exhaustive list of included items
• source links for each item

When there is a conflict between source-derived feature data and commit text, source-derived data wins.

JSON mode returns:

• as_of_utc
• repo
• local_repo
• analyzed_commit_sha
• stable_tag
• compare_url
• source_files_mined[]
• source_primary.beta_features[] and source_primary.under_development_features[]
• source_primary.supporting_evidence (structured extraction for every required source file)
• items[] with kind, title, commit_sha, commit_url, pr_number, pr_url (secondary)

Classification Rules

Read references/classification-rules.md before changing filtering behavior. Keep inclusion deterministic and biased toward user-visible changes.

Guardrails

• Do not use stale local commit snapshots; clone if missing and sync (fetch/pull) on every run.
• Fail closed if local repo origin does not match the requested owner/repo.
• Keep release resolution live (GitHub API), source feature extraction local (from mined files), and commit extraction local (synced git history).
• Treat commit messages as supporting evidence only; never treat commits as primary feature truth when source files disagree.
• Do not infer future roadmap from open issues or open PRs in this skill version.
• Fail closed with actionable errors when API/auth/rate-limit calls fail.