tech-design SKILL.md skillB
tech-design from open-octo/octo-agent is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add open-octo/octo-agent/tech-design@git:20260713.903d7e2Pins git:20260713.903d7e2 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- B, 16 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- open-octo/octo-agent
- Path
internal/skills/defaults/tech-design/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260713.903d7e2, committed Jul 13, 2026
- First version recorded
- Jul 1, 2026
- Size
- 13,538 bytes
- Repository stars
- 142
- License
- MIT
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
# Skill: tech-design Take a PRD (or feature description) and produce a complete backend technical design document through a structured process: **understand → explore → grill → write → self-review**. ## Rules (the reason this skill exists) These six rules run through the whole process. Follow them while writing (Phase 4), then grep for violations in the self-review. Most rework on a design doc traces back to breaking one of them. ### R1. Never invent placeholders (API / field / service / URL / enum) Every concrete technical name must be **grepped from real code, looked up in docs, or asked of the user** — never a plausible-sounding placeholder left for review to fix. Inventing `svc.GetBookingNotes` when no such method exists, or guessing a column is `matter_type` when it's really `ticket_type`, is the single most common source of production bugs that pass mocked tests. ### R2. Never invent phasing The design scope is strictly equal to the PRD scope. There are only two legal sources of phasing: (a) the PRD itself marks priority (P1/P2 in the stories), or (b) the user explicitly said "do X first, not Y" during grilling. Otherwise, if the PRD lists N sub-scenarios, design N. …
Read the whole file at its exact version.
How to install
mdr add open-octo/octo-agent/tech-design@sha256:a2ee1c44ec826722The line at the top of this page pins the label git:20260713.903d7e2, 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.
[](https://markdownregistry.com/a/art_gnv4kuoxnhteusdy)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Jul 1, 2026 and Jul 13, 2026, about one every 12 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260713.903d7e2 latest | 2026-07-13 | 903d7e2 | 13,538 B | B | view · diff |
| git:20260701.b9c1253 | 2026-07-01 | b9c1253 | 11,182 B | B | view |
Audit of the latest version
- fail: Frontmatter declares a description
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Size between 200 bytes and 200 KB (13538 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
Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.
Source
open-octo/octo-agent · 142 stars · license MIT · pushed 2026-11-04 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_gnv4kuoxnhteusdy GET https://markdownregistry.com/api/v1/resolve?ref=open-octo/octo-agent/tech-design GET https://markdownregistry.com/api/v1/blob/a2ee1c44ec826722cda07b8fcc27f85e2e585af7823ed0b769b073ee99327402
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.