bugbot

bugbot is a cursor rule for Cursor from vypdev/copilot. It costs 8 tokens per session (310 once invoked), scanned A, original, MIT.

A reference and workflow for Bugbot, a system that detects possible software problems and can act on requests to fix them. It uses code changes, pull requests, issues, and review comments as context.

In plain words
What is it for?
Use it to detect potential problems after pushes or on demand, review findings in pull requests, and handle requested fixes through issue or review comments.
Why use it?
It helps track whether reported findings are new, already known, or resolved, instead of treating every scan result as unrelated.

Cursor rule for Cursor

Written for Cursor: installed under .cursor/.

Good fit Use it to detect potential problems after pushes or on demand, review findings in pull requests, and handle requested fixes through issue or review comments.

Compare 6 cursor rules from other repositories ↓
Install with agentmods
npx agentmods add rules/vypdev/copilot/bugbot
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/vypdev/copilot

Made for: Cursor.

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 bugbot

README.md
[![agentmods](https://agentmods.dev/badge/rules/vypdev/copilot/bugbot/github.svg)](https://agentmods.dev/rules/vypdev/copilot/bugbot)
Your own site
<a href="https://agentmods.dev/rules/vypdev/copilot/bugbot"><img src="https://agentmods.dev/badge/rules/vypdev/copilot/bugbot/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 bugbot

Your own site · 80×15
<a href="https://agentmods.dev/rules/vypdev/copilot/bugbot"><img src="https://agentmods.dev/badge/rules/vypdev/copilot/bugbot.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 8 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 310 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 $0.00008 $0.00310
Opus 5.5 $0.00003 $0.00124
Sonnet 5.5 $0.00002 $0.00062
Haiku 4.5 $0.00001 $0.00031

Measured 1mo ago against content hash f1f136a64ad6, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

bugbot 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 1mo 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.

.cursor/rules/bugbot.mdc · 36 lines

What it actually says

Bugbot technical reference

Read _agent/docs/bugbot.md and the public /bugbot documentation before changing Bugbot. The implementation lives under src/application/usecases/steps/commit/bugbot/; provider implementations stay behind semantic application ports.

Current invariants:

  • Review and intent tasks are read-only; fixer tasks may mutate only after application authorization.
  • Every structured response is validated locally, regardless of CLI-native schema support.
  • One canonical PR diff snapshot supplies files, patches, and addressable locations for a run.
  • Finding markers require both a local fingerprint and a semantic fingerprint. Marker authorship must match the authenticated workflow identity.
  • Publication revalidates the PR head and uses one native review with line, range, or file-level child comments.
  • Autofix verification and commit success do not resolve findings; a fresh independent review must verify resolution.
  • Canonical comment options are dry-run, trace-rules, and suggested-changes.
  • Canonical mutation/review commands are parsed by src/domain/bugbot/review_command.ts and src/domain/copilot_command.ts; do not add unversioned aliases.

Use the source types and policies as the executable contract. Do not restore an older marker shape, direct-diff reader, provider-specific application path, or alternate command spelling.

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. 1mo ago Changed · -94 lines · -17 tokens per session f1f136a64ad6
  2. 1mo ago Changed · +1 lines 160cc131259b
  3. 1mo ago First seen · 129 lines · 25 tokens per session scan A b74d0f21f198

Subscribe to this mod's changes

bugbot is a cursor rule published in the GitHub repository vypdev/copilot (3 stars, last pushed today), licensed MIT. It adds 8 tokens to every session and 310 once invoked, about $0.0000 per session on Opus 5.5. 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.