simulate-before-launch SKILL.md skillA
simulate-before-launch from understudylabs/orchestra-agent-tools is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add understudylabs/orchestra-agent-tools/simulate-before-launch@git:20260719.1185398Pins git:20260719.1185398 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- understudylabs/orchestra-agent-tools
- Path
skills/simulate-before-launch/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260719.1185398, committed Jul 19, 2026
- First version recorded
- Jul 15, 2026
- Size
- 8,794 bytes
- Repository stars
- 19
- License
- MIT
Use when a model-level change — a model swap, route change, prompt or playbook edit — is about to ship and the developer wants confidence before prod: "will this work in prod", "run a simulator before I flip traffic", "gate model changes like a pre-commit check". Replays frozen tasks offline, scores output contracts, emits a launch verdict.
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
# Simulate Before Launch Live monitoring watches latency and HTTP errors; a contract regression returns HTTP 200 with the wrong shape. A routed model that answers a `response_format: json_schema` request with a fenced ```json code block instead of an enforced structured object shows *zero errors and great latency* while one in five downstream parses fails. This worker is the offline gate between "a change exists" and "traffic moves": replay the workload's frozen tasks through the same serving path with the change applied, score **quality and output contracts over repeated rollouts**, and emit a launch verdict — before any traffic, capture, or customer sees the change. Checked against existing skills: `design-simulated-environment` owns *building* the seeded environment and validator — this skill *runs* an existing eval surface as a ship/no-ship gate. `capture-evidence` owns the frozen harness/metric/splits/baseline this gate refuses to run without. `compare-model-sweep` owns choosing among many candidates — this skill judges one proposed change against the incumbent. `ramp-and-verify` owns live traffic and *consumes* this skill's verdict as its "frozen-eval verdict exists" …
Read the whole file at its exact version.
How to install
mdr add understudylabs/orchestra-agent-tools/simulate-before-launch@sha256:35716e2998067288The line at the top of this page pins the label git:20260719.1185398, 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_vqlqzunxkpt7b3sn)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Jul 15, 2026 and Jul 19, 2026, about one every 5 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260719.1185398 latest | 2026-07-19 | 1185398 | 8,794 B | A | view · diff |
| git:20260715.7731d13 | 2026-07-15 | 7731d13 | 8,045 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 (8794 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
understudylabs/orchestra-agent-tools · 19 stars · license MIT · pushed 2026-11-05 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_vqlqzunxkpt7b3sn GET https://markdownregistry.com/api/v1/resolve?ref=understudylabs/orchestra-agent-tools/simulate-before-launch GET https://markdownregistry.com/api/v1/blob/35716e29980672889ced4f21ac6541ae9397b0601c04ec8b10921a3f89240933
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.