compiler-optimizations-deep SKILL.md skillA
compiler-optimizations-deep 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/compiler-optimizations-deep@git:20260905.fd53e99Pins git:20260905.fd53e99 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/compiler-optimizations-deep/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260905.fd53e99, committed Sep 5, 2026
- Size
- 6,970 bytes
- Repository stars
- 55
- License
- Apache-2.0
Use when -O3 leaves a hot loop scalar, spills appear in assembly, or a PGO or BOLT deployment is planned or stalls. Not for machine lowering: use code-generation-and-backends.
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
# Compiler optimizations, deep ## Contract | Field | Bound contract | |---|---| | Trigger | A hot loop stayed scalar at `-O3`, assembly shows spills, `-O3` runs slower than `-O2`, GCC and Clang produce different code for the same source, or a profile-guided or post-link optimization is being planned or produced no gain. | | Authority | Reversible local: writes only instrumented binaries, profiles, and remark files under a scratch directory named in the report; rollback is deleting that directory. No remote mutation. | | Side effect | Runs the compiler with remark flags, and when asked, an instrumented build and a training run. Project files are not modified. | | Done | Each symptom is attributed to a named pipeline stage with the compiler's own remark or output as evidence, and each fix is stated as a source change, a flag, or a workflow step the user can apply. | ## Inputs 1. Source and the exact compile command (required): the flags decide which passes run. 2. Compiler and version (required if not inferrable): `clang --version` or `gcc --version`. Grounded current stables are LLVM/Clang 23.1.0 and GCC 16.2; flags below are confirmed against Clang 23.1.0. …
Read the whole file at its exact version.
How to install
mdr add outlinedriven/outline-driven-development/compiler-optimizations-deep@sha256:7ff1ce88bd6e2b22The line at the top of this page pins the label git:20260905.fd53e99, 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_cpgewehuuyjgxz7c)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Sep 5, 2026.
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 (6970 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_cpgewehuuyjgxz7c GET https://markdownregistry.com/api/v1/resolve?ref=outlinedriven/outline-driven-development/compiler-optimizations-deep GET https://markdownregistry.com/api/v1/blob/7ff1ce88bd6e2b22bb552b8046b5724c12a41b07d4e9cf9650167ddd815334d0
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.