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ha

v0.1.0+codex.20260825013426

Higher Agents for Codex: rigorously plan, implement, review, and merge one feature with controlled subagents and fail-closed gates.

Codex9 Skills

By ken2403License: MIT3 GitHub starsUpdated last week

Directory evidence

Runtimes
Codex
Parsed components
9 skill or MCP entries
Source updated
Sep 15, 2026
Manifest status
Canonical path parsed

The directory validates manifest shape and source location. It does not execute the plugin or provide a security endorsement. Review the indexing methodology →

Install ha for Codex

Installs for the current user
codex plugin marketplace add ken2403/agent-parallel-dev-plugin
codex plugin marketplace upgrade agent-parallel-dev-plugin
codex plugin add ha@agent-parallel-dev-plugin

Paste and run these commands in a terminal with Codex. They add and refresh the agent-parallel-dev-plugin catalog, then install this plugin.

Compatibility: the page URL and API slug “ha-2” remain stable.

  • Codex: ha-2@agent-plugin-marketplace → ha@agent-parallel-dev-plugin

The installer fetches third-party code from the source repository shown on this page. This directory validates manifest structure and source location, but does not perform a security audit; review the manifest, components, and source before installing.

Get the source manually
git clone https://github.com/ken2403/agent-parallel-dev-plugin

Clone the source repository, then follow its setup instructions to add the plugin to a compatible client. The plugin root is plugins/ha/.

Plugin files

plugins/ha/
├── .codex-plugin/plugin.json
├── skills/ha-adversarial-verification/SKILL.md
├── skills/ha-apply-feedback/SKILL.md
├── skills/ha-clean-worktrees/SKILL.md
├── skills/ha-code-review/SKILL.md
├── skills/ha-implement/SKILL.md
├── skills/ha-merge-pr/SKILL.md
├── skills/ha-plan/SKILL.md
├── skills/ha-resolve-conflicts/SKILL.md
└── skills/ha-review-pr/SKILL.md

Included Skills9

ha-adversarial-verificationskills/ha-adversarial-verification/SKILL.md

Refute load-bearing claims about a design, implementation, conflict resolution, or PR using bounded independent read-only Codex subagents and evidence-gated adjudication. Use for risk-scaled HA design red-teams, assembled-change pre-PR gates, independent PR reviews, and any risky correctness, security, completeness, or no-regression claim.

ha-apply-feedbackskills/ha-apply-feedback/SKILL.md

Evaluate and address HA, human, or GitHub review feedback on a PR in an isolated worktree, verifying each claim before changing code, using test-first fixes, re-verification, and a push to the existing PR branch. Use after $ha-review-pr requests changes or when the user asks Codex to act on PR feedback.

ha-clean-worktreesskills/ha-clean-worktrees/SKILL.md

Safely reclaim linked worktrees and local branches only after positive proof that their PR or branch merged. Use explicitly after feature PRs land, for one named branch/path or all merged worktrees. Never removes the main checkout, uncommitted work, unmerged branches, or unknown locks; never uses force deletion.

ha-code-reviewskills/ha-code-review/SKILL.md

Apply HA engineering standards whenever Codex implements, changes, verifies, or reviews code. Covers code quality, behavior-focused test rigor, security, and consistency beyond the diff, including the canonical risky-surface list and the blocking rule for behavior changes without covering tests.

ha-implementskills/ha-implement/SKILL.md

Implement one human-approved HA plan completely in an isolated persistent worktree, using sequential fresh Codex subagents, per-task specification and quality review, risk-scaled adversarial verification, fresh build evidence, and an open PR. Use after $ha-plan or when given an equivalent approved task-by-task plan. Stops at the PR; use $ha-review-pr independently afterward.

ha-merge-prskills/ha-merge-pr/SKILL.md

Merge a GitHub PR only after deterministic fail-closed preflight proves it is open, ready, conflict-free, green, free of changes-requested reviews, and still at the exact head SHA approved by $ha-review-pr. Use when the user explicitly asks to merge a reviewed HA PR. Never bypasses protection or force-merges.

ha-planskills/ha-plan/SKILL.md

Plan one non-trivial feature thoroughly before implementation. Use when the user wants a design dialogue, repository-grounded impact analysis, adversarial red-team, explicit behavioral test strategy, and a human-approved plan ready for $ha-implement. Accepts an issue, specification file, or free-text feature request. Never writes feature code.

ha-resolve-conflictsskills/ha-resolve-conflicts/SKILL.md

Resolve a PR or feature branch against its base branch in an isolated worktree while preserving both sides' intent, then independently verify integration, run the build, commit, and push. Use when GitHub reports conflicts or an out-of-date HA branch. Never resolves in the main checkout.

ha-review-prskills/ha-review-pr/SKILL.md

Independently and adversarially review a GitHub PR against its plan, repository rules, correctness, behavioral test coverage, security, architecture, and cross-codebase consistency. Use after $ha-implement or for any PR needing high confidence. Produces a strict SHA-bound review record consumed by $ha-merge-pr; optionally posts a human-readable GitHub review comment.

Plugin manifests1

plugins/ha/.codex-plugin/plugin.json
{
  "name": "ha",
  "version": "0.1.0+codex.20260825013426",
  "description": "Higher Agents for Codex: rigorously plan, implement, review, and merge one feature with controlled subagents and fail-closed gates.",
  "author": {
    "name": "ken2403",
    "url": "https://github.com/ken2403"
  },
  "homepage": "https://github.com/ken2403/agent-parallel-dev-plugin/tree/main/plugins/ha",
  "repository": "https://github.com/ken2403/agent-parallel-dev-plugin",
  "license": "MIT",
  "keywords": [
    "codex",
    "development",
    "planning",
    "code-review",
    "worktrees"
  ],
  "skills": "./skills/",
  "interface": {
    "displayName": "Higher Agents for Codex",
    "shortDescription": "Build one feature with rigorous Codex-only gates.",
    "longDescription": "Plan and red-team one feature, implement it task by task with controlled fresh subagents, independently review the PR, apply feedback, resolve conflicts, merge through deterministic preflight checks, and safely reclaim worktrees — entirely in Codex.",
    "developerName": "ken2403",
    "category": "Productivity",
    "capabilities": [
      "Read",
      "Write",
      "Git",
      "GitHub",
      "Subagents"
    ],
    "defaultPrompt": [
      "Use $ha-plan to design and red-team one feature before implementation.",
      "Use $ha-implement to build an approved HA plan in an isolated worktree.",
      "Use $ha-review-pr to run an independent adversarial review of a PR."
    ]
  }
}

For maintainers

If you maintain this plugin, link to this source-backed listing from your README so users can review its manifest and indexed components.

[ha on Agent Plugins Marketplace](https://pluginsmp.com/plugins/ha-2)