signoff-loop SKILL.md skillA
signoff-loop from shenshan123/r2g-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add shenshan123/r2g-skills/signoff-loop@git:20261028.2b824f5Pins git:20261028.2b824f5 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- shenshan123/r2g-skills
- Path
r2g-skills/signoff-loop/SKILL.md- Versions recorded
- 7
- Latest version
- git:20261028.2b824f5, committed Oct 28, 2026
- First version recorded
- Jul 24, 2026
- Size
- 50,323 bytes
- Repository stars
- 44
- License
- MIT
Drive an open-source EDA workflow from RTL to GDS with full signoff (DRC, LVS, RCX) using OpenROAD-flow-scripts (ORFS), Yosys, KLayout, Magic, Netgen, and OpenRCX — plus a self-improving observation→ingest→act loop that learns repair recipes to eliminate DRC/LVS violations and close timing at the best Fmax. Use when the user wants to turn a hardware spec or RTL into synthesis, place-and-route, GDS output, signoff verification, parasitic extraction, PPA iteration, flow-failure diagnosis…
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
# signoff-loop Skill Execute a staged, artifact-first open-source EDA flow from specification to GDSII with full signoff checks using OpenROAD-flow-scripts (ORFS), and close the loop by learning from every run (the two memory DBs + `engineer_loop`) so DRC/LVS violations are eliminated and timing closes at the best Fmax. Prefer deterministic scripts for execution, keeping the agent focused on planning, generation, diagnosis, and iteration. > **Dataset construction lives in the companion `def-graph` skill.** This skill produces > the clean, signed-off `6_final.def`/`.odb`/`.spef`; converting those into PyG graph > datasets (the five views b–f, tech-lib/LEF parser, feature + label extraction) is > `def-graph`'s job — see its `SKILL.md`. ## Environment Setup Every flow script sources `scripts/flow/_env.sh` on entry, which autodetects ORFS + tool paths and lets the user override any single value. You do not need to source anything manually. ### Resolution order (first hit wins, per value) 1. **Variable already set in the caller's environment** — `ORFS_ROOT=... run_orfs.sh ...` wins unconditionally. 2. **User env file** — path in `$R2G_ENV_FILE` (if set). …
Read the whole file at its exact version.
How to install
mdr add shenshan123/r2g-skills/signoff-loop@sha256:3a7790e6e2a206b4The line at the top of this page pins the label git:20261028.2b824f5, 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_stkkveq55la3g3jk)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 7 versions of this file, between Jul 24, 2026 and Oct 28, 2026, about one every 16 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261028.2b824f5 latest | 2026-10-28 | 2b824f5 | 50,323 B | A | view · diff |
| git:20260930.fd9fa56 | 2026-09-30 | fd9fa56 | 50,474 B | A | view · diff |
| git:20260923.60813f7 | 2026-09-23 | 60813f7 | 50,212 B | A | view · diff |
| git:20260923.e7bc0fc | 2026-09-23 | e7bc0fc | 49,731 B | A | view · diff |
| git:20260802.4a69e22 | 2026-08-02 | 4a69e22 | 49,212 B | A | view · diff |
| git:20260725.2020c73 | 2026-07-25 | 2020c73 | 47,353 B | A | view · diff |
| git:20260724.28e4772 | 2026-07-24 | 28e4772 | 46,618 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (50323 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
shenshan123/r2g-skills · 44 stars · license MIT · pushed 2026-10-29 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_stkkveq55la3g3jk GET https://markdownregistry.com/api/v1/resolve?ref=shenshan123/r2g-skills/signoff-loop GET https://markdownregistry.com/api/v1/blob/3a7790e6e2a206b4e4f3379367dcc425c10d3c206458b6f0b948fbe57358d7be
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.