al-compile SKILL.md skillA

al-compile from sshadows/lethal is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add sshadows/lethal/al-compile@git:20261021.85ce5d5

Pins git:20261021.85ce5d5 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
sshadows/lethal
Path
.claude/skills/al-compile/SKILL.md
Versions recorded
5
Latest version
git:20261021.85ce5d5, committed Oct 21, 2026
First version recorded
Jul 24, 2026
Size
2,255 bytes
Repository stars
10
License
MIT

Offline-compile an AL project with alc.exe and report diagnostics — the standalone verification for AL edits (AL has no unit-test harness here). Use when you changed AL in extensions/lethal-control or an emitted instrumented target and want to confirm it builds before the live gate. Invoke as /al-compile [project-dir].

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

# al-compile

Compile an AL project offline and report diagnostics. AL edits have no `bun test` — this + the live gate are the verification.

## Usage
`/al-compile` — compiles `extensions/lethal-control` (default).
`/al-compile <project-dir>` — compiles the given AL project (its `.alpackages` is the symbol cache).

## Procedure
```bash
# run from the repo root
if [ "$(uname -s)" = "Linux" ]; then
  # Linux: $LETHAL_ALC_DIR/alc first, then the extension's bin/linux/alc. Never an .exe.
  ALC="${LETHAL_ALC_DIR:+$LETHAL_ALC_DIR/alc}"
  [ -x "$ALC" ] || ALC=$(ls ~/.vscode/extensions/ms-dynamics-smb.al-*/bin/linux/alc 2>/dev/null | sort | tail -1)
else
  ALC=$(ls ~/.vscode/extensions/ms-dynamics-smb.al-*/bin/win32/alc.exe ~/.vscode/extensions/ms-dynamics-smb.al-*/bin/alc.exe 2>/dev/null | sort | tail -1)
fi
PROJ="${1:-extensions/lethal-control}"
CACHE="$PROJ/.alpackages"
OUT="$PROJ/.al-compile-check.app"
"$ALC" "/project:$PROJ" "/packagecachepath:$CACHE" "/out:$OUT"; echo "EXIT=$?"
rm -f "$OUT"
```

## Rules
- Git bash on Windows; never `2>nul` (use `2>/dev/null`).
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add sshadows/lethal/al-compile@sha256:429feacd5848581a

The line at the top of this page pins the label git:20261021.85ce5d5, 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.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_q7n725l7d2se2vtr.svg)](https://markdownregistry.com/a/art_q7n725l7d2se2vtr)

0 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 Oct 21, 2026, about one every 22 days.

versioncommittedcommitsizeaudit
git:20261021.85ce5d5 latest2026-10-21 85ce5d5 2,255 BA view · diff
git:20261009.04f0a542026-10-09 04f0a54 2,248 BA view · diff
git:20261003.77b85172026-10-03 77b8517 2,019 BA view · diff
git:20260819.00dcd7b2026-08-19 00dcd7b 1,728 BA view · diff
git:20260724.2d21e1a2026-07-24 2d21e1a 1,674 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (2255 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

GitHub

sshadows/lethal · 10 stars · license MIT · pushed 2026-11-07 · branch master

API

GET https://markdownregistry.com/api/v1/artifacts/art_q7n725l7d2se2vtr
GET https://markdownregistry.com/api/v1/resolve?ref=sshadows/lethal/al-compile
GET https://markdownregistry.com/api/v1/blob/429feacd5848581a34beb8da442cf8a2c03e76e636176d276839c7909d66d1fb

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.

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