report-writing SKILL.md skillA
report-writing from mikacr1138/claude-bug-bounty is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add mikacr1138/claude-bug-bounty/report-writing@git:20260317.a154787Pins git:20260317.a154787 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- mikacr1138/claude-bug-bounty
- Path
skills/report-writing/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260317.a154787, committed Mar 17, 2026
- Size
- 11,516 bytes
- Repository stars
- 3
- License
- MIT
Bug bounty report writing for H1/Bugcrowd/Intigriti/Immunefi — report templates, human tone guidelines, impact-first writing, CVSS 3.1 scoring, title formula, impact statement formula, severity decision guide, downgrade counters, pre-submit checklist. Use after validating a finding and before submitting. Never use "could potentially" — prove it or don't report.
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
# REPORT WRITING
Impact-first. Human tone. No theoretical language. Triagers are people.
---
## THE MOST IMPORTANT RULE
> **Never use "could potentially" or "could be used to" or "may allow".**
> Either it does the thing or it doesn't. If you haven't proved it, don't claim it.
```
BAD: "This vulnerability could potentially allow an attacker to access user data."
GOOD: "An attacker can access any user's order history by changing the user_id
parameter to the target user's ID. I confirmed this using two test accounts:
attacker@test.com (ID 123) successfully retrieved victim@test.com (ID 456)
orders, including their shipping address and payment method last 4 digits."
```
---
## TITLE FORMULA
```
[Bug Class] in [Exact Endpoint/Feature] allows [attacker role] to [impact] [victim scope]
```
**Good titles (specific, impact-first):**
```
IDOR in /api/v2/invoices/{id} allows authenticated user to read any customer's invoice data
Missing auth on POST /api/admin/users allows unauthenticated attacker to create admin accounts
Stored XSS in profile bio field executes in admin panel — allows privilege escalation
…Read the whole file at its exact version.
How to install
mdr add mikacr1138/claude-bug-bounty/report-writing@sha256:899d868c0c984ec4The line at the top of this page pins the label git:20260317.a154787, 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_4v5n4i7ombdcn54l)
5 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Mar 17, 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 (11516 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
mikacr1138/claude-bug-bounty · 3 stars · license MIT · pushed 2026-10-14 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_4v5n4i7ombdcn54l GET https://markdownregistry.com/api/v1/resolve?ref=mikacr1138/claude-bug-bounty/report-writing GET https://markdownregistry.com/api/v1/blob/899d868c0c984ec488ea256dbc6fde674cfedc49025e1228b1335a00c70c395f
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.
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