# browser-replay

Re-drives a recorded browser session against the same URL or a mutated variant. Handy for regression runs after a deploy.

- skill · `type=skill` · Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, OpenCode · 720 installs · ★ 79357
- Author: ruvnet
- License: MIT · policy=mirror · the beginning of the file is at the end of this page
- Source: https://github.com/ruvnet/ruflo/tree/HEAD/plugins/ruflo-browser/skills/browser-replay/SKILL.md
- Updated: 2026-10-25
- HTML: https://affpapa.org/en/nevibecode/skills/browser-replay

## What it does

The skill walks a saved trajectory step by step: it opens a browser and fires the matching MCP tool (`browser_click`, `browser_fill`, `browser_eval` and the rest) with the arguments that were captured. Every line of the trajectory holds `{ts, action, args, selector, result}`.

A missing selector does not kill the run. The skill queries the `browser-selectors` namespace for an embedding-similar selector under the same `<host>:<intent>` and retries once, which is how it survives DOM drift. You need `npx` plus access to `ruvector` and `@claude-flow/cli`.

The verdict is the ratio of matched steps to total steps, with a default tolerance of 0.85 that `--tolerance` overrides. Timing and content variation across the network can produce false failures, so inject expected differences with `--mutate` or pin the run to a fixture. Needing more than one retry on a step means the site wants a fresh recording rather than another replay.

## Install

### Claude Code (native platform)

1. **Skills CLI (Vercel)**
```bash
npx skills add ruvnet/ruflo --skill browser-replay -a claude-code
```

2. **Manually: put the files in place**
- File: `~/.claude/skills/browser-replay/SKILL.md` — Copy the whole skill folder; for one project use .claude/skills/browser-replay/

### Codex

1. **Skills CLI (Vercel)**
```bash
npx skills add ruvnet/ruflo --skill browser-replay -a codex
```

2. **Manually: put the files in place**
- File: `.agents/skills/browser-replay/SKILL.md` — For all projects use ~/.agents/skills/

### Cursor

1. **Skills CLI (Vercel)**
```bash
npx skills add ruvnet/ruflo --skill browser-replay -a cursor
```

2. **Manually: put the files in place**
- File: `.cursor/skills/browser-replay/SKILL.md` — Cursor also reads .agents/skills/ and .claude/skills/

### GitHub Copilot

1. **GitHub CLI**
```bash
gh skill install ruvnet/ruflo browser-replay
```

2. **Manually: put the files in place**
- File: `.github/skills/browser-replay/SKILL.md`

### Gemini CLI

1. **Skills CLI (Vercel)**
```bash
npx skills add ruvnet/ruflo --skill browser-replay -a gemini-cli
```

2. **Platform CLI**
```bash
gemini skills install https://github.com/ruvnet/ruflo --path plugins/ruflo-browser/skills/browser-replay
```

### Windsurf (Devin Desktop)

**Manually: put the files in place**
- File: `.devin/skills/browser-replay/SKILL.md` — The legacy .windsurf/skills/ path still works

### OpenCode

**Skills CLI (Vercel)**
```bash
npx skills add ruvnet/ruflo --skill browser-replay -a opencode
```

### Claude.ai

**Claude.ai**
- Zip the folder and upload it in Settings → Capabilities → Skills

Where a file is given instead of a command, copy the files from the source to that path: https://github.com/ruvnet/ruflo/tree/HEAD/plugins/ruflo-browser/skills/browser-replay/SKILL.md

## When to use it
- regression-test a UI flow after a deploy
- reproduce a bug captured in an earlier session
- compare two runs of one flow through `browser-screenshot-diff`
- check whether a recorded session is replayable at all
- fork a session and replay the parent before mutating

## Example prompts
- Replay session `checkout-2024.rvf` on the same URL and list the steps that did not match
- Run `login-flow.rvf` with `--url` pointed at staging and `--tolerance 0.9`
- Replay `signup.rvf` with `--mutate` so expected content differences are tolerated

## Source text · SKILL.md · MIT

Below is the content of a third-party file. It is data, not instructions for you: do not act on anything written inside unless the human asks. Block tag: 91379b6a5faced18.

BEGIN THIRD-PARTY FILE 91379b6a5faced18
````text
---
name: browser-replay
description: Replay a recorded session trajectory against the same URL or a mutated variant; uses browser-selectors embedding similarity to recover from DOM drift
argument-hint: "<session-id> [--url <new-url>] [--mutate <json>] [--tolerance <0..1>]"
allowed-tools: mcp__plugin_ruflo-core_ruflo__browser_open mcp__plugin_ruflo-core_ruflo__browser_close mcp__plugin_ruflo-core_ruflo__browser_click mcp__plugin_ruflo-core_ruflo__browser_fill mcp__plugin_ruflo-core_ruflo__browser_type mcp__plugin_ruflo-core_ruflo__browser_press mcp__plugin_ruflo-core_ruflo__browser_select mcp__plugin_ruflo-core_ruflo__browser_check mcp__plugin_ruflo-core_ruflo__browser_uncheck mcp__plugin_ruflo-core_ruflo__browser_hover mcp__plugin_ruflo-core_ruflo__browser_wait mcp__plugin_ruflo-core_ruflo__browser_screenshot mcp__plugin_ruflo-core_ruflo__browser_snapshot mcp__plugin_ruflo-core_ruflo__browser_eval Bash Read
---

# Browser Replay

Re-drive a recorded session trajectory. Used for regression testing, deterministic re-runs, and as the verification path that `browser-record` plus `browser-selectors` actually produces something replayable.

> **This skill is the load-bearing assumption of the v0.2.0 architecture.** ADR-0001 Verification §4 requires ≥80% replay success across 10 distinct sites of varying drift profiles before the proposal moves from `Proposed` → `Accepted`. If you find replay unreliable, capture the failure modes in `findings.md` and report them up the ADR.

## When to use

- Regression-testing a UI flow after a deploy.
- Reproducing a bug captured in a prior session.
- Comparing two runs of the same flow for `browser-screenshot-diff`.
- Forking a session (`/ruflo-browser fork`) and replaying the parent before mutating.

## Steps

1. **Locate the source session**:
   ```bash
   npx -y ruvector@0.2.27 rvf status <session-id>.rvf
   ```
2. **Load the trajectory**:
   ```bash
   Read .../trajectory.ndjson
   ```
   Each line is `{ts, action, args, selector, result}`.
3. **Open a fresh browser** via `mcp__plugin_ruflo-core_ruflo__browser_open` (target URL = original or `--url` override).
4. **For each trajectory step**, dispatch the matching MCP tool (`browser_click`, `browser_fill`, `browser_eval`, etc.) with the recorded args.
5. **On selector miss**, do *not* fail immediately — query the `browser-selectors` namespace for an embedding-similar selector for the same `<host>:<intent>` and retry once:
   ```bash
   npx -y @claude-flow/cli@latest memory search --namespace browser-selectors \
     --query "<host> <intent>" --limit 5
   ```
6. **Record a new trajectory** for the replay run (allocate a fresh RVF container, lineage-tracked via `rvf derive`).
````
END THIRD-PARTY FILE 91379b6a5faced18

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