escape-analysis-internals SKILL.md skillA
escape-analysis-internals from robsonkades/agent-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add robsonkades/agent-skills/escape-analysis-internals@git:20261016.c769bd8Pins git:20261016.c769bd8 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- robsonkades/agent-skills
- Path
skills/escape-analysis-internals/SKILL.md- Versions recorded
- 5
- Latest version
- git:20261016.c769bd8, committed Oct 16, 2026
- First version recorded
- Sep 6, 2026
- Size
- 12,043 bytes
- Repository stars
- 3
- License
- Apache-2.0
C2 escape-analysis internals: connection graphs, escape-state propagation, flow insensitivity, bytecode escape summaries, scalar replacement and allocation merges, lock elimination, macro expansion, and deoptimization rematerialization. Use when a hot object still allocates, an inlining boundary changes EA, a product-build diagnostic is misleading, a disabled JFR allocation event is treated as proof, or recurring deoptimization makes eliminated objects costly. Does not cover introductory…
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
# Escape Analysis Internals ## Purpose Explain why a specific object was not eliminated, using the mechanism rather than folklore. The failure this skill prevents is chasing the wrong target: tuning bytecode escape-analysis limits toward ArgEscape in the hope of removing an allocation. In current C2, ArgEscape is not eligible for scalar replacement; it can make monitor elimination possible, but even that remains subject to the surrounding lock shape and compiler policy. Escape classification is the fixed point of edge propagation over a connection graph, and macro expansion then removes an `AllocateNode` or lowers the surviving allocation. Dead-code and macro cleanup can also discard an allocation whose result has no surviving use, independently of EA. That is one reason a zero-allocation microbenchmark needs an EA-disabled control and emitted- code/compiler-log evidence. ## Workflow 1. **Confirm the baseline is not the explanation.** Record vendor, full JDK build, compiler, tiering and effective flags; this material targets HotSpot C2, chiefly JDK 25. Reuse established compiler evidence. For a confirmed Graal target, stop these C2 steps and hand off …
Read the whole file at its exact version.
How to install
mdr add robsonkades/agent-skills/escape-analysis-internals@sha256:e3c64d7967172ae0The line at the top of this page pins the label git:20261016.c769bd8, 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_o63oqxw6k2vn6jfs)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Sep 6, 2026 and Oct 16, 2026, about one every 10 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261016.c769bd8 latest | 2026-10-16 | c769bd8 | 12,043 B | A | view · diff |
| git:20260927.9ecadfd | 2026-09-27 | 9ecadfd | 11,811 B | A | view · diff |
| git:20260923.832673e | 2026-09-23 | 832673e | 11,386 B | A | view · diff |
| git:20260911.37b054b | 2026-09-11 | 37b054b | 11,182 B | A | view · diff |
| git:20260906.e6ad4bd | 2026-09-06 | e6ad4bd | 10,302 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 (12043 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
robsonkades/agent-skills · 3 stars · license Apache-2.0 · pushed 2026-10-28 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_o63oqxw6k2vn6jfs GET https://markdownregistry.com/api/v1/resolve?ref=robsonkades/agent-skills/escape-analysis-internals GET https://markdownregistry.com/api/v1/blob/e3c64d7967172ae0ab6b83849ef1c7b146ffd149000f66f525121879e47b9f7d
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.