reproduce-bug

reproduce-bug is a command for Claude Code from edgarbnt/ReactSentinel. It costs 16 tokens per session (183 once invoked), scanned A, original, MIT.

A command for checking whether a proposed React fix resolves the original browser problem, using repeatable runtime checks or replayed user actions.

In plain words
What is it for?
Use it after reproducing a React or browser bug to rerun the same scenario, make assertions, and record pass-or-fail evidence.
Why use it?
It ties validation to the reproduced failure, making it clearer whether the fix works and helping reduce regressions.

Command for Claude Code

Written for Claude Code: a Claude Code command (commands/*.md).

Good fit Use it after reproducing a React or browser bug to rerun the same scenario, make assertions, and record pass-or-fail evidence.

Compare 6 commands from other repositories ↓
Install with agentmods
npx agentmods add commands/edgarbnt/reactsentinel/reproduce-bug
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo
git clone --depth 1 https://github.com/edgarbnt/ReactSentinel

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for reproduce-bug

README.md
[![agentmods](https://agentmods.dev/badge/commands/edgarbnt/reactsentinel/reproduce-bug/github.svg)](https://agentmods.dev/commands/edgarbnt/reactsentinel/reproduce-bug)
Your own site
<a href="https://agentmods.dev/commands/edgarbnt/reactsentinel/reproduce-bug"><img src="https://agentmods.dev/badge/commands/edgarbnt/reactsentinel/reproduce-bug/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for reproduce-bug

Your own site · 80×15
<a href="https://agentmods.dev/commands/edgarbnt/reactsentinel/reproduce-bug"><img src="https://agentmods.dev/badge/commands/edgarbnt/reactsentinel/reproduce-bug.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 16 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 183 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00016 $0.00183
Opus 5 $0.00008 $0.00092
Sonnet 5 $0.00003 $0.00037
Haiku 4.5 $0.00002 $0.00018

Measured 10d ago against content hash d03763de1fc4, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

reproduce-bug scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 10d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

assets/agent-pack/commands/reproduce-bug.md · 23 lines

What it actually says

reproduce-bug

Use this command when you need a deterministic reproduction before changing code.

  1. Start with get_server_info and get_session_status.
  2. Choose Replay unless the issue requires an existing logged-in tab or real browser state.
  3. Navigate to the failing page and replay the minimal steps that trigger the bug.
  4. Capture the useful signals early: console events, network events, render hotspots, hydration issues, or async timeline data.
  5. Write down the exact trigger, observed result, and expected result.
  6. End with a runtime assertion that can be reused by validate-fix.

Expected outcome

  • a stable reproduction path exists;
  • the failure is backed by observable runtime evidence;
  • and follow-up validation can reuse the same scenario.
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 10d ago First seen · 23 lines · 16 tokens per session scan A d03763de1fc4

Subscribe to this mod's changes

reproduce-bug is a command published in the GitHub repository edgarbnt/ReactSentinel (1 stars, last pushed 3mo ago), licensed MIT. It adds 16 tokens to every session and 183 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.