model-routing SKILL.md skillA
model-routing from frankxai/claude-skills-library is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add frankxai/claude-skills-library/model-routing@v1.1.0Pins v1.1.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- frankxai/claude-skills-library
- Path
free-skills/model-routing/SKILL.md- Versions recorded
- 4
- Latest version
- v1.1.0, committed Sep 19, 2026
- First version recorded
- May 25, 2026
- Size
- 8,271 bytes
- Repository stars
- 47
- License
- MIT
Intelligent model selection — routes tasks to Haiku (fast/cheap), Sonnet (balanced), or Opus (complex/strategic) by analyzing task complexity. Use when deciding which model to run, optimizing cost vs quality, or building a tiered routing layer.
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
# Model Routing System You have access to intelligent model routing. Before executing any task, analyze complexity and route to the appropriate model tier. > **Current model IDs and pricing — Last verified: 2026-08-28. Re-verify at > [platform.claude.com](https://platform.claude.com/docs/en/about-claude/models/overview) before trusting > these again; they have moved more than once in 2026.** > Haiku → `claude-haiku-4-5` ($1.00 / $5.00 per 1M input/output) · Sonnet → `claude-sonnet-5` > ($2.00 / $10.00) · Opus → `claude-opus-5` ($5.00 / $25.00, default). > For the hardest long-horizon reasoning, escalate above Opus to **`claude-fable-5`** ($10.00 / $50.00 — > most capable; thinking is always on, no disabling it; reserve for genuinely demanding work). > Model IDs are complete as written — never append a date suffix. The tiers below are model-agnostic. ## Routing Decision Matrix ``` TASK COMPLEXITY ANALYSIS ──────────────────────────────────────────────────────────────── HAIKU (Fast, Cheap) - claude-haiku-4-5 - Use for: ├── Simple file operations (read, list, navigate) ├── Scaffolding and boilerplate generation ├── Deterministic transformations (format, lint, compile) …
Read the whole file at its exact version.
How to install
mdr add frankxai/claude-skills-library/model-routing@sha256:397722720ac9f6a8The line at the top of this page pins the label v1.1.0, 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_6xiaqdsdkzgf5gpd)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 4 versions of this file, between May 25, 2026 and Sep 19, 2026, about one every 39 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.1.0 latest | 2026-09-19 | d800c14 | 8,271 B | A | view · diff |
| v1.0.0 | 2026-06-22 | 279de9d | 5,839 B | A | view · diff |
| v1.0.0 | 2026-06-08 | 07e270e | 5,388 B | A | view · diff |
| v1.0.0 | 2026-05-25 | 468c26e | 5,288 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 (8271 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
frankxai/claude-skills-library · 47 stars · license MIT · pushed 2026-10-20 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_6xiaqdsdkzgf5gpd GET https://markdownregistry.com/api/v1/resolve?ref=frankxai/claude-skills-library/model-routing GET https://markdownregistry.com/api/v1/blob/397722720ac9f6a8b6988817d0c3a9baabeedbfc29701a512a6d3dbed04d79cb
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.
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