maintainable-code SKILL.md skillA
maintainable-code from jpcaparas/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add jpcaparas/skills/maintainable-code@v2.0.0Pins v2.0.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- jpcaparas/skills
- Path
skills/engineering/maintainable-code/SKILL.md- Versions recorded
- 3
- Latest version
- v2.0.0, committed Sep 25, 2026
- First version recorded
- Sep 12, 2026
- Size
- 27,083 bytes
- Repository stars
- 56
- License
- none declared
Guide maintainable, resilient, test-double-friendly code: clear names, decomposition, safe defaults, idempotency, bounded retries, observability, and quality gates. Use for production code, jobs, queues, webhooks, APIs, refactors, reviews, plans, CI, config, or dependency-heavy code and tests. Skip disposable work.
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
# maintainable-code Write, edit, and review code so a human maintainer can understand it, test it, and change it later without decoding cleverness, debug production failures without attaching a debugger, and replace dependencies in tests without distorting the production design. This skill unifies three concerns that used to be separate skills: general maintainability, production-app resilience (jobs, queues, retries, observability), and mockability (dependency boundaries and test doubles). ## Passive Trigger Load this skill in the background whenever the task involves source code, even if the user does not mention maintainability. This includes production-facing runtime behavior such as background workers, scheduled tasks, webhooks, payment flows, imports/exports, notifications, API integrations, database state transitions, caches, file uploads, queues, cron, auth/session flows, logging, tracing, alerting, or reliability behavior. It also includes any behavior that depends on collaborators, I/O, time, randomness, persistence, configuration, network calls, SDKs, process state, or framework context. …
Read the whole file at its exact version.
How to install
mdr add jpcaparas/skills/maintainable-code@sha256:5754ec666ea589dbThe line at the top of this page pins the label v2.0.0, 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_u4e4nkxyaziv46yj)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Sep 12, 2026 and Sep 25, 2026, about one every 6 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v2.0.0 latest | 2026-09-25 | 692d684 | 27,083 B | A | view · diff |
| v2.0.0 | 2026-09-15 | 12d6015 | 25,914 B | A | view · diff |
| v1.1.0 | 2026-09-12 | 938fe03 | 12,067 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 (27083 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
jpcaparas/skills · 56 stars · license none declared · pushed 2026-11-03 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_u4e4nkxyaziv46yj GET https://markdownregistry.com/api/v1/resolve?ref=jpcaparas/skills/maintainable-code GET https://markdownregistry.com/api/v1/blob/5754ec666ea589db54c6e0c52f5a23e8fff53c1bb723701528a6943539edffa3
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.