start-execution-model SKILL.md skillB
start-execution-model from fusengine/agents is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add fusengine/agents/start-execution-model@v1.0.0Pins v1.0.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- B, 16 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- fusengine/agents
- Path
plugins/tanstack-start-expert/skills/start-execution-model/SKILL.md- Versions recorded
- 3
- Latest version
- v1.0.0, committed Sep 27, 2026
- First version recorded
- Jul 5, 2026
- Size
- 5,606 bytes
- Repository stars
- 36
- License
- MIT
Use when deciding where TanStack Start code runs, fixing secret leaks, DB-in-loader bugs, or hydration mismatches.
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
<objective> Covers TanStack Start's execution model — where code actually runs, described as the single most important concept in Start and the #1 source of AI-generated bugs. Targets @tanstack/react-start v1.168.58. Every module is isomorphic by default: it runs in BOTH server and client bundles, and route loaders run on both server (SSR) and client (navigation) — so DB access, filesystem, and secrets must live inside createServerFn or createServerOnlyFn, never a bare loader or module scope. process.env must be read per request, not at module scope, because module-level reads can leak into the client bundle and are undefined on edge runtimes that inject env at request time. VITE_/PUBLIC_-prefixed vars are exposed to the client, so server secrets must never carry that prefix. Documents every environment-boundary API at a glance — createServerFn, createServerOnlyFn, createClientOnlyFn, createIsomorphicFn, <ClientOnly>, useHydrated(), and the server-only/client-only import markers — with a decision framework for which to use and complete copy-paste boundary examples. …
Read the whole file at its exact version.
How to install
mdr add fusengine/agents/start-execution-model@sha256:5ea9c7546b1857e3The line at the top of this page pins the label v1.0.0, 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_mbck6fxsqon3qozh)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Jul 5, 2026 and Sep 27, 2026, about one every 42 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.0.0 latest | 2026-09-27 | 43a351c | 5,606 B | B | view · diff |
| v1.0.0 | 2026-07-29 | 3b91eed | 5,604 B | B | view · diff |
| v1.0.0 | 2026-07-05 | 8c2f9bc | 4,820 B | B | view |
Audit of the latest version
- fail: No instruction to read or print local credentials (matched: read `process.env)
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (5606 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 base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.
Source
fusengine/agents · 36 stars · license MIT · pushed 2026-10-30 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_mbck6fxsqon3qozh GET https://markdownregistry.com/api/v1/resolve?ref=fusengine/agents/start-execution-model GET https://markdownregistry.com/api/v1/blob/5ea9c7546b1857e3cd9cf98b9fe28c230810b272a0a15742c87f16755b8c322c
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.