perf-loop SKILL.md skillA
perf-loop from ivy00johns/skill-madness is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add ivy00johns/skill-madness/perf-loop@v1.0.0Pins v1.0.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- ivy00johns/skill-madness
- Path
skills/loops/perf-loop/SKILL.md- Versions recorded
- 2
- Latest version
- v1.0.0, committed Oct 8, 2026
- First version recorded
- Jun 22, 2026
- Size
- 11,419 bytes
- Repository stars
- 11
- License
- MIT
Profile and optimize a metric under its budget in a disciplined profile-optimize-reprofile loop: benchmark the whole measured set under a fixed environment, find the single highest-leverage hotspot or regression, optimize one thing, re-benchmark the WHOLE set, and repeat until the metric is under target on every measured path with no functional regression. Use for a latency, throughput, page-load, bundle-size, memory, or test-suite-speed target — "optimize until under Nms…
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
# perf-loop > **A configuration of [`loop-controller`].** That skill supplies the loop > machinery — primitive selection, the full guardrail stack, state > externalization. This skill supplies the two things specific to "make it hit > the budget": a **measured proof under repeatable conditions** (a named > benchmark artifact, default-FAIL) and the **measurement discipline** that keeps > a noisy benchmark from lying to the loop. Read `loop-controller` for the > guardrails; they're inherited, not repeated here. > > **Why `disable-model-invocation`:** this loop edits and commits code on its own > and spends real time re-running benchmarks until a metric is under target. You > want to *type* `/perf-loop` (or have the orchestrator dispatch it) — not have > Claude start an autonomous optimize loop because a number looked slow. ## The 5-part contract | Part | This loop | |---|---| | **trigger** | a metric is over its budget (a slow path, a perf regression, a too-big bundle), or an explicit `/perf-loop` (optionally scoped to one path/benchmark) | …
Read the whole file at its exact version.
How to install
mdr add ivy00johns/skill-madness/perf-loop@sha256:6d5a241ee59e63a8The line at the top of this page pins the label v1.0.0, 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_sm7bspj7routh3hh)
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Versions
The registry has recorded 2 versions of this file, between Jun 22, 2026 and Oct 8, 2026, about one every 108 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.0.0 latest | 2026-10-08 | d1d8537 | 11,419 B | A | view · diff |
| v1.0.0 | 2026-06-22 | d646b00 | 11,616 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 (11419 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
ivy00johns/skill-madness · 11 stars · license MIT · pushed 2026-10-25 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_sm7bspj7routh3hh GET https://markdownregistry.com/api/v1/resolve?ref=ivy00johns/skill-madness/perf-loop GET https://markdownregistry.com/api/v1/blob/6d5a241ee59e63a8d3dfa7e84beef27c96d6fafb2511ab85757412f541a4ac03
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.