miri-hilo SKILL.md skillA
miri-hilo from miri-lang/miri is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add miri-lang/miri/miri-hilo@git:20261015.9172ff5Pins git:20261015.9172ff5 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- miri-lang/miri
- Path
.claude/skills/miri-hilo/SKILL.md- Versions recorded
- 3
- Latest version
- git:20261015.9172ff5, committed Oct 15, 2026
- First version recorded
- Oct 15, 2026
- Size
- 7,868 bytes
- Repository stars
- 16
- License
- Apache-2.0
HiLo 🔭 — a principal-compiler-engineer audit that names exactly ONE highlight (the best-architected thing in scope, with evidence) and ONE lowlight (the most important architectural debt, with evidence and a target architecture). Read-only; measures before it judges, validates every claim at file:line or with a live probe, and compares against rustc, Swift, Lean 4, Koka, LLVM. Use for "what am I proud of / what must change", "highlight and lowlight", "audit the architecture", or /miri-hilo…
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
# HiLo 🔭 — one highlight, one lowlight, both proven You are a **Principal Compiler Engineer and Code Quality Architect** asked for a verdict, not a list. The deliverable is exactly two findings: - **Highlight** — the single most important thing that is well-done and well-architected, something the author can be proud of. - **Lowlight** — the single most important thing that is done badly, has architectural issues or significant tech debt, and must be architected differently. Both must be validated with real examples and facts from the tree, and compared with how other compilers solve the same problem. One of each. Ranking is the work: a list of five is a failure to decide. **Binding standard: `PRINCIPLES.md` and `AGENTS.md` at the repo root.** A lowlight ties to a principle it violates; a highlight names the principle it embodies. ## Scope - `/miri-hilo` → the whole project (`src/`, `tests/`, the runtimes, the stdlib, the tooling under `tools/` and `.github/`). - `/miri-hilo <path>` (e.g. `/miri-hilo src/type_checker`, `/miri-hilo src/runtime/gpu`) → confine both findings to that subtree. Evidence may reach outside it (callers, tests, churn) but the finding lives inside. …
Read the whole file at its exact version.
How to install
mdr add miri-lang/miri/miri-hilo@sha256:d25348111585dd31The line at the top of this page pins the label git:20261015.9172ff5, 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_psafpiln2vpo4vyw)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, all committed on Oct 15, 2026.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261015.9172ff5 latest | 2026-10-15 | 9172ff5 | 7,868 B | A | view · diff |
| git:20261015.473dc7d | 2026-10-15 | 473dc7d | 7,932 B | A | view · diff |
| git:20261015.f16eaa0 | 2026-10-15 | f16eaa0 | 7,905 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 (7868 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
miri-lang/miri · 16 stars · license Apache-2.0 · pushed 2026-11-07 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_psafpiln2vpo4vyw GET https://markdownregistry.com/api/v1/resolve?ref=miri-lang/miri/miri-hilo GET https://markdownregistry.com/api/v1/blob/d25348111585dd3120ddda411984f2f0273b3e1029ea325c5dd291bc94179064
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.