Sandbox Routing SKILL.md skillA
Sandbox Routing from wrg32786/aigent-os is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add wrg32786/aigent-os/Sandbox Routing@git:20260707.2a2e857Pins git:20260707.2a2e857 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- wrg32786/aigent-os
- Path
skills/sandbox-routing/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260707.2a2e857, committed Jul 7, 2026
- Size
- 4,340 bytes
- Repository stars
- 24
- License
- MIT
SELF-CORRECT tool choice. About to Read a long file just to extract one piece of info? Use a sandbox tool that returns only the summary. About to run a long shell command? Same. Sandbox keeps raw output OUT of context — only summaries land. Triggers when about to flood context with large output.
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
# Sandbox Routing > [!danger] HARD RULE — fires before any large Read or Bash that isn't for editing > If you're about to Read a long file to *analyze* (not to Edit), or run a Bash command with >20 line output, **route through sandbox tools instead**. Raw output stays out of context; only the summary you print enters context. This skill assumes your Claude Code install includes context-mode (or equivalent) sandbox tools — `ctx_execute`, `ctx_execute_file`, `ctx_batch_execute`. If those aren't available, the principle still applies: use `head_limit` on Grep, narrow Read to specific line ranges, and avoid `cat large.log`. ## The decision tree ``` Am I about to Read or run Bash? ├── Editing a file? (need full content for Edit tool) │ → Read is correct, proceed │ ├── Running git status / git log -n short / mkdir / mv / rm / short command? │ → Bash is correct, proceed │ ├── Reading a file just to extract a piece of info / find a line? │ → STOP. Use ctx_execute_file with grep/awk code that prints just the answer. │ ├── Running a shell command with >20 line output? …
Read the whole file at its exact version.
How to install
mdr add wrg32786/aigent-os/Sandbox Routing@sha256:893474882aacefffThe line at the top of this page pins the label git:20260707.2a2e857, 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_5ctjclk4cxm2lhbu)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Jul 7, 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 (4340 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
wrg32786/aigent-os · 24 stars · license MIT · pushed 2026-10-19 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_5ctjclk4cxm2lhbu GET https://markdownregistry.com/api/v1/resolve?ref=wrg32786/aigent-os/Sandbox Routing GET https://markdownregistry.com/api/v1/blob/893474882aacefff8002e50ca422579a2eba6c55931ef803e486916a69eede33
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.