hydraia SKILL.md skillA

hydraia from jdanigo/hydraia is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add jdanigo/hydraia/hydraia@git:20260912.9f5add4

Pins git:20260912.9f5add4 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
jdanigo/hydraia
Path
codex/skills/hydraia/SKILL.md
Versions recorded
5
Latest version
git:20260912.9f5add4, committed Sep 12, 2026
First version recorded
Aug 19, 2026
Size
7,020 bytes
Repository stars
8
License
MIT

Codex-native hydraia pipeline. Use when the user asks to build, add, implement, or change a feature, brings a story/ticket, reports a bug, or wants a branch review. Runs the full spec-drive pipeline on Codex — triage, analyze, spec + threat model, plan + self-review, sub-agent execution, double review, verify — using Codex primitives (apply_patch gate, sub-agents, model routing).

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Hydraia (Codex host)

You are running the hydraia spec-drive pipeline on Codex. Host-specific mechanics:

- **Gate:** a `PreToolUse` hook blocks `apply_patch` (and write `shell`) until a plan is
  frozen. Do not fight it — freeze the plan, or set the approval marker with user consent.
- **Sub-agents:** spawn executors for plan tasks (they run `gpt-5.6-luna`, cheap). Spawn
  reviewers at Phase 5 (they run `gpt-5.6-sol`, frontier). This session (plan/spec/design)
  runs `gpt-5.6-sol`.
- **Skills:** invoke supporting skills with `$skill-name`.
- **Step files:** the pipeline body lives in `phases/*.md` next to this file, loaded
  just-in-time. Read one phase file fully, execute it, then load the next only when its
  `## NEXT` directs you. **Never load two phase files at once.** These phase files are
  kept **byte-identical** to the Claude orchestrator's `phases/*.md` (CI enforces per-file
  parity), so they are the shared source of truth that never drifts.

## Host translation table (READ BEFORE the contract)

The contract below (the dispatcher) and the `phases/*.md` it loads are the shared source
of truth, kept byte-identical to the Claude orchestrator so they never drift. They are
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add jdanigo/hydraia/hydraia@sha256:711c962dbba0263f

The line at the top of this page pins the label git:20260912.9f5add4, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_wrxbqgimu576q5rh.svg)](https://markdownregistry.com/a/art_wrxbqgimu576q5rh)

6 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 5 versions of this file, between Aug 19, 2026 and Sep 12, 2026, about one every 6 days.

versioncommittedcommitsizeaudit
git:20260912.9f5add4 latest2026-09-12 9f5add4 7,020 BA view · diff
git:20260911.e5f1c752026-09-11 e5f1c75 6,322 BA view · diff
git:20260911.d23e5432026-09-11 d23e543 5,643 BA view · diff
git:20260819.5ce71da2026-08-19 5ce71da 53,413 BA view · diff
git:20260819.92d8ac52026-08-19 92d8ac5 51,658 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (7020 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

jdanigo/hydraia · 8 stars · license MIT · pushed 2026-09-24 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_wrxbqgimu576q5rh
GET https://markdownregistry.com/api/v1/resolve?ref=jdanigo/hydraia/hydraia
GET https://markdownregistry.com/api/v1/blob/711c962dbba0263faca3887170ab0ebc536758dff91092724b61bce914f5ba6d

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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Every file in jdanigo/hydraia

Other files named hydraia

hydraia SKILL.md skill
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