custom-allocators SKILL.md skillA
custom-allocators from outlinedriven/outline-driven-development is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add outlinedriven/outline-driven-development/custom-allocators@git:20260912.5c5b759Pins git:20260912.5c5b759 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- outlinedriven/outline-driven-development
- Path
.devin/skills/custom-allocators/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260912.5c5b759, committed Sep 12, 2026
- First version recorded
- Sep 5, 2026
- Size
- 8,003 bytes
- Repository stars
- 55
- License
- Apache-2.0
Use when implementing pool/slab/arena allocators, tuning jemalloc/mimalloc/tcmalloc, writing a Rust GlobalAlloc, or benchmarking allocator performance and fragmentation.
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
# Custom allocators ## Contract | Field | Bound contract | |---|---| | Trigger | Memory allocator design, tuning, or benchmarking for C, Rust, or systems workloads. | | Authority | Read-only. No source or remote mutation. Chat output only. | | Side effect | Emits a structured guidance report to chat. | | Done | The report names the allocator type, shows a pool or arena implementation, lists jemalloc/mimalloc/tcmalloc tuning options, shows a Rust GlobalAlloc pattern, and gives fragmentation and benchmarking steps. | ## Inputs 1. **Target language and allocator type** (required): C pool/arena, Rust GlobalAlloc, or tuning jemalloc/mimalloc/tcmalloc. 2. **Workload pattern** (required): allocation size distribution, object lifetime, thread count, and latency or throughput goal. 3. **Observed symptom** (optional): OOM, RSS growth, fragmentation, allocator contention, or unexpected latency. ## Procedure 1. **Classify the allocator type.** Match the workload to one of the allocator types below. Done when: the type is named. | Type | Best for | Allocation | Free | |---|---|---|---| …
Read the whole file at its exact version.
How to install
mdr add outlinedriven/outline-driven-development/custom-allocators@sha256:dfb2010ee9ae6d26The line at the top of this page pins the label git:20260912.5c5b759, 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_pr5emj632yabxjlj)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Sep 5, 2026 and Sep 12, 2026, about one every 7 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260912.5c5b759 latest | 2026-09-12 | 5c5b759 | 8,003 B | A | view · diff |
| git:20260905.fd53e99 | 2026-09-05 | fd53e99 | 7,972 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 (8003 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
outlinedriven/outline-driven-development · 55 stars · license Apache-2.0 · pushed 2026-09-28 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_pr5emj632yabxjlj GET https://markdownregistry.com/api/v1/resolve?ref=outlinedriven/outline-driven-development/custom-allocators GET https://markdownregistry.com/api/v1/blob/dfb2010ee9ae6d2653ff08968ac731883e69658fc2d8d998c4cb4a92f661204d
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.