express SKILL.md skillA
express from swingerman/engineer is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add swingerman/engineer/express@git:20261020.53d8135Pins git:20261020.53d8135 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- swingerman/engineer
- Path
engineer/skills/express/SKILL.md- Versions recorded
- 2
- Latest version
- git:20261020.53d8135, committed Oct 20, 2026
- First version recorded
- Sep 22, 2026
- Size
- 4,761 bytes
- Repository stars
- 162
- License
- MIT
Use to build an XS (express-lane) feature in one pass — intake→implement→verify in a single context, no handoff chain, code-first. Triggers — "/engineer.express", "express build", building a feature whose gate_profile.lane is express.
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
# express
The **express lane** for `size: XS` features (`${CLAUDE_PLUGIN_ROOT}/references/express-lane.md`).
One born-die agent runs **intake → implement → verify in a single context** — no
CP2→CP8 handoff chain, no sub-agents, no `acs.md`/`spec.md`/`plan.md`. The
acceptance test is the spec; docs stay capped below code. Same tracker row and
deterministic gates as any feature — just without the per-checkpoint re-prime
that dominates a normal feature's cost.
Runs *after* `feature-init` has created the `size: XS` feature (or a converged
prototype landed at `prototype_disposition: in-place`).
## When to use
- `feature-init` handed off a feature with `gate_profile.lane: express`.
- A converged XS prototype (`in-place`) — the prototype code is the starting
implementation.
**Not for:** anything charter-flagged (payments/auth/migration/blast-radius),
`autonomy_level: low`, or bigger than ~1 PR — those take the full pipeline. If
you find yourself here on one of them, **escalate** (Step 5).
## Workflow
Do the whole thing in one context. **No sub-agents, no inter-phase handoffs.**
0. **Resolve + branch** — root + manifest via `${CLAUDE_PLUGIN_ROOT}/scripts/dae_resolve.py`;
…Read the whole file at its exact version.
How to install
mdr add swingerman/engineer/express@sha256:0681edc8307bdc3aThe line at the top of this page pins the label git:20261020.53d8135, 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_6r7dsf6ouuski5j2)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Sep 22, 2026 and Oct 20, 2026, about one every 28 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261020.53d8135 latest | 2026-10-20 | 53d8135 | 4,761 B | A | view · diff |
| git:20260922.ccea2d9 | 2026-09-22 | ccea2d9 | 4,583 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 (4761 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
swingerman/engineer · 162 stars · license MIT · pushed 2026-10-27 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_6r7dsf6ouuski5j2 GET https://markdownregistry.com/api/v1/resolve?ref=swingerman/engineer/express GET https://markdownregistry.com/api/v1/blob/0681edc8307bdc3a6a87232175eda340d10835f95df189656bcfc8902be64c23
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.