find-untested-sources SKILL.md skillA
find-untested-sources from dotnet/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add dotnet/skills/find-untested-sources@git:20260908.1eb7136Pins git:20260908.1eb7136 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- dotnet/skills
- Path
plugins/dotnet-test/skills/find-untested-sources/SKILL.md- Versions recorded
- 5
- Latest version
- git:20260908.1eb7136, committed Sep 8, 2026
- First version recorded
- Jul 24, 2026
- Size
- 13,406 bytes
- Repository stars
- 5,836
- License
- MIT
MANDATORY for static source-to-test pairing: find or list source files/modules without corresponding tests, or suggest test locations from repository structure. Invoke even for a tiny package; do not substitute manual globbing. Uses Roslyn for C#/.NET and tree-sitter for Python, TS/JS, Go, Java, Rust, Ruby, Kotlin, Swift, PowerShell, and C++. DO NOT USE FOR: real line/branch/Cobertura data, coverage-backed test priorities, CRAP risk, or grading existing tests.
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
# Find Untested Sources ## Purpose Coverage tools answer "which lines were executed?" — they require a green build and a passing test run, which is minutes-to-tens-of-minutes on a real repo. The question this skill answers is different and much cheaper: > _Which source files have no test file referencing any of their declared > types/symbols?_ That's the question an agent asks **before** writing a new test — and it can be answered statically in a few seconds by parsing source files, with **no build, no dependency resolution, and no compilation**. The output is a deterministic test-pairing map that lets the agent pick the next file to test without reading the entire codebase first. ## Two engines — pick one This skill ships two interchangeable analyzers with a compatible JSON contract: | Engine | Script | Use when | |--------|--------|----------| | **Roslyn (C#)** | `scripts/Find-UntestedSources.cs` | The repo is **.NET-only**. Parses every `.cs` file with the Roslyn syntax API and does strict **namespace disambiguation**, so it is materially more accurate on duplicated short names like `Settings` or `Context`. | …
Read the whole file at its exact version.
How to install
mdr add dotnet/skills/find-untested-sources@sha256:c1777c1c9a19e985The line at the top of this page pins the label git:20260908.1eb7136, 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_jrfjnwlexsjdvvxj)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Jul 24, 2026 and Sep 8, 2026, about one every 12 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260908.1eb7136 latest | 2026-09-08 | 1eb7136 | 13,406 B | A | view · diff |
| git:20260903.30b30ef | 2026-09-03 | 30b30ef | 12,871 B | A | view · diff |
| git:20260902.00b3bac | 2026-09-02 | 00b3bac | 12,629 B | A | view · diff |
| git:20260826.3cd1337 | 2026-08-26 | 3cd1337 | 12,307 B | A | view · diff |
| git:20260724.71414ce | 2026-07-24 | 71414ce | 12,196 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 (13406 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
dotnet/skills · 5,836 stars · license MIT · pushed 2026-11-06 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_jrfjnwlexsjdvvxj GET https://markdownregistry.com/api/v1/resolve?ref=dotnet/skills/find-untested-sources GET https://markdownregistry.com/api/v1/blob/c1777c1c9a19e9855e87b4db5e1b9b9df349983e16dba2ba9e761fcac52cb83e
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.