riscv-spec SKILL.md skillA
riscv-spec from openxiangshan/xiangshanlab is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add openxiangshan/xiangshanlab/riscv-spec@git:20260920.b781a6dPins git:20260920.b781a6d in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- openxiangshan/xiangshanlab
- Path
tools/RISC-V skill/openclaw-skills-main/riscv-spec/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260920.b781a6d, committed Sep 20, 2026
- Size
- 5,461 bytes
- Repository stars
- 62
- License
- none declared
Look up RISC-V ISA specification details using the local riscv-unified-db (UDB) repository. Activate when answering questions about RISC-V extensions, instructions, encodings, assembly syntax, CSR fields, architectural parameters (hardware configuration knobs), profile requirements (RVA20/22/23, RVB23, etc.), or any ISA-level spec claim. Also use for verifying RISC-V spec claims before stating them - including claims in patches, commit messages, or upstream discussions about spec compliance.…
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
# RISC-V Spec Lookup ## Rule Never state RISC-V spec claims without verifying against UDB or upstream spec sources. If UDB doesn't cover it, say so explicitly. ## Local Database Path: `~/repos/riscv-unified-db/` If the directory does not exist, **ask the user for confirmation before cloning** (~200MB). Do not clone silently. ### Keeping UDB Fresh After cloning or fetching, record the date in `<skill_dir>/.last-update` (same directory as this SKILL.md). On each activation, check the file. If older than 7 days (or missing), run: ```bash cd ~/repos/riscv-unified-db && git fetch origin && git merge --ff-only origin/main ``` Then update the timestamp. ## Lookup Procedure ### Extensions ``` spec/std/isa/ext/<Name>.yaml ``` Key fields: `name`, `long_name`, `description`, `versions[]` (state, ratification_date), `requirements` If unsure of exact name: `find spec/std/isa/ext/ -iname '*keyword*'` ### Instructions ``` spec/std/isa/inst/<Ext>/<name>.yaml ``` Key fields: `name`, `long_name`, `description`, `assembly` (syntax), `encoding.match` (bitmask), `encoding.variables[]` (operand bit locations), `access` (s/u/vs/vu permissions), `definedBy`, `operation()` …
Read the whole file at its exact version.
How to install
mdr add openxiangshan/xiangshanlab/riscv-spec@sha256:20f903e194348b67The line at the top of this page pins the label git:20260920.b781a6d, 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_sbpn4tjjx4woqjme)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Sep 20, 2026.
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 (5461 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
openxiangshan/xiangshanlab · 62 stars · license none declared · pushed 2026-11-06 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_sbpn4tjjx4woqjme GET https://markdownregistry.com/api/v1/resolve?ref=openxiangshan/xiangshanlab/riscv-spec GET https://markdownregistry.com/api/v1/blob/20f903e194348b67f4b5c2a132e67378026b14965c4a53ec0a623793a1827c92
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.