replay-vision-setup SKILL.md skillA
replay-vision-setup from xerk/xerk is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add xerk/xerk/replay-vision-setup@v1.55.0Pins v1.55.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- xerk/xerk
- Path
.claude/skills/replay-vision-setup/SKILL.md- Versions recorded
- 1
- Latest version
- v1.55.0, committed Oct 7, 2026
- Size
- 5,910 bytes
- Repository stars
- 17
- License
- MIT
Set up PostHog Replay vision. Makes sure session replay is recording (server-side enable plus a posthog-js init check), then creates vision scanners scoped to the product's key flows, read out of the repo. Scanners watch each new session recording with an LLM and report scores, tags, and summaries as queryable events.
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
# Set up PostHog Replay vision Use this skill to set up **Replay vision** for a user's product: make sure session replay is actually recording, then create vision scanners tailored to this product's key flows. A scanner is an LLM that watches one session recording at a time and writes an observation - a score, a tag, or a summary - and every observation lands as a queryable PostHog event. The run has two halves, and both matter: 1. **Recordings must flow.** Scanners only see what session replay records, so the server-side recording toggle must be on and the client init must not cancel it. 2. **Scanners must be tailored.** You are the only actor that has read this repo. A scanner scoped to *this* product's completion flow is worth ten generic ones. The mechanics live in dedicated step skills - install each one with `install_skill` when its step begins, and follow it: | skill id | owns | | --- | --- | | `replay-vision-enable-replay` | making session replay record (both halves) | | `replay-vision-scanners-core` | scanner create/update mechanics, sizing, collisions, security ground rules | | `replay-vision-scanner-broken-experiences` | the breakage monitor brief | …
Read the whole file at its exact version.
How to install
mdr add xerk/xerk/replay-vision-setup@sha256:f8bdd2897d9e0de7The line at the top of this page pins the label v1.55.0, 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_dsaob66wsqjrh3py)
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Versions
The registry has recorded 1 version of this file, committed on Oct 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 (5910 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
xerk/xerk · 17 stars · license MIT · pushed 2026-10-17 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_dsaob66wsqjrh3py GET https://markdownregistry.com/api/v1/resolve?ref=xerk/xerk/replay-vision-setup GET https://markdownregistry.com/api/v1/blob/f8bdd2897d9e0de74ce09d71d717818808fe86ca86cadc2853430871d29dc461
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.