synthesis-model-tiers SKILL.md skillA
synthesis-model-tiers from synthesisengineering/synthesis-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add synthesisengineering/synthesis-skills/synthesis-model-tiers@v3.0.0Pins v3.0.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- synthesisengineering/synthesis-skills
- Path
skills/synthesis-model-tiers/SKILL.md- Versions recorded
- 4
- Latest version
- v3.0.0, committed Oct 6, 2026
- First version recorded
- Jul 29, 2026
- Size
- 6,365 bytes
- Repository stars
- 23
- License
- Apache-2.0
Cross-provider model-tier convention: role labels judgment, routine and bulk resolved to model IDs per provider in tiers.yaml, routed by whether the cause is known. Use for model tiers, which model or effort level, model selection, switching models, model equivalents, or updating the model table.
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
# Synthesis Model Tiers A tiny convention that keeps model names out of everything except one file. Skills, project context files, agent memory, and standing instructions reference **role labels**; the labels resolve to current model identifiers in [`tiers.yaml`](tiers.yaml). When a vendor ships a new generation, refresh the table and verify each consuming catalog; a table edit alone does not update installed clients or product configuration. ## Binding rules 1. **Never hardcode a model name** in skills, project docs, agent memory or standing instructions. Write the role label; it resolves in `tiers.yaml`. 2. **Route by whether the cause is known, not by how small the task looks.** A symptom report is diagnosis and belongs in `judgment`, even when the subject is one file. 3. **Any one of three properties forces `judgment`:** the cause is unknown; a deliverable or durable record is in the blast radius; the work will not be independently reviewed before it lands. 4. **Say you are under-tiered before acting, not after,** and let the human re-tier. A confident wrong result is the failure this skill exists to prevent. …
Read the whole file at its exact version.
How to install
mdr add synthesisengineering/synthesis-skills/synthesis-model-tiers@sha256:78afbb3e4532ed12The line at the top of this page pins the label v3.0.0, 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_6cxs42ic2mlqsk5i)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 4 versions of this file, between Jul 29, 2026 and Oct 6, 2026, about one every 23 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v3.0.0 latest | 2026-10-06 | c836a60 | 6,365 B | A | view · diff |
| v2.2.0 | 2026-09-25 | b28997f | 11,699 B | A | view · diff |
| v2.1.0 | 2026-08-24 | 54702d4 | 9,607 B | A | view · diff |
| v2.0.0 | 2026-07-29 | 9b134e7 | 6,168 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 (6365 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
synthesisengineering/synthesis-skills · 23 stars · license Apache-2.0 · pushed 2026-11-05 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_6cxs42ic2mlqsk5i GET https://markdownregistry.com/api/v1/resolve?ref=synthesisengineering/synthesis-skills/synthesis-model-tiers GET https://markdownregistry.com/api/v1/blob/78afbb3e4532ed123f8206f2fefa24ae773bd7ddc0e00bd723bdff5605d920ab
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.