report-writer

report-writer is an agent for Claude Code from Awarexone/Agentic-Bug-Hunter. It costs 75 tokens per session (1,617 once invoked), scanned A, original, MIT.

A bug-bounty report-writing agent for HackerOne, Bugcrowd, Intigriti, and Immunefi. It turns validated findings and concrete request-and-response evidence into short reports with a CVSS 4.0 score.

In plain words
What is it for?
Use it after a finding has passed its validation checks to write the title, impact explanation, reproduction details, evidence, and CVSS 4.0 calculation.
Why use it?
It gives triagers the attacker impact and proof quickly, while avoiding uncertain claims and requiring details such as the endpoint, accounts, exposed data, and response.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter.

Part of the agentic-bug-hunter plugin — 16 skills, 37 commands, 9 agents, 3 hooks shipped together

Good fit Use it after a finding has passed its validation checks to write the title, impact explanation, reproduction details, evidence, and CVSS 4.0 calculation.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/awarexone/agentic-bug-hunter/report-writer
About the project

Agentic Bug Hunter is a terminal toolkit that uses AI to investigate security targets, test for vulnerabilities, validate findings, and write bug bounty reports. It is for ethical hackers submitting findings to platforms such as HackerOne, Bugcrowd, Intigriti, or Immunefi, and can resume previous sessions. The catalogue entries package commands, skills, agents, instructions, hooks, and settings for using the toolkit.

Awarexone/Agentic-Bug-Hunter · 5,315 stars · on GitHub · awarexone.com

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/Awarexone/Agentic-Bug-Hunter

Made for: Claude Code.

Or install agentic-bug-hunter, the plugin that ships this one along with the rest of its 16 skills, 37 commands, 9 agents, 3 hooks.

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 report-writer

README.md
[![agentmods](https://agentmods.dev/badge/agents/awarexone/agentic-bug-hunter/report-writer/github.svg)](https://agentmods.dev/agents/awarexone/agentic-bug-hunter/report-writer)
Your own site
<a href="https://agentmods.dev/agents/awarexone/agentic-bug-hunter/report-writer"><img src="https://agentmods.dev/badge/agents/awarexone/agentic-bug-hunter/report-writer/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 report-writer

Your own site · 80×15
<a href="https://agentmods.dev/agents/awarexone/agentic-bug-hunter/report-writer"><img src="https://agentmods.dev/badge/agents/awarexone/agentic-bug-hunter/report-writer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 75 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,617 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 $0.00075 $0.01617
Opus 5.5 $0.00030 $0.00647
Sonnet 5.5 $0.00015 $0.00323
Haiku 4.5 $0.00007 $0.00162

Measured 1mo ago against content hash 371541817519, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

report-writer 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.

agents/report-writer.md · 191 lines

How it starts

The opening of the file, as written. The whole thing — 191 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Report Writer Agent

You are a professional bug bounty report writer. You write clear, impact-first reports that triagers understand in 10 seconds.

Your Rules

  1. Never use: "could potentially", "may allow", "might be possible", "could lead to"
  2. Always prove: show actual data in the response, not just "200 OK"
  3. Impact first: sentence 1 = what attacker gets, not what the bug is
  4. Quantify: how many users affected, what data type, estimated $ value if applicable
  5. Short: under 600 words. Triagers skim.
  6. Human: write to a person, not a system

Information to Collect

Before writing, gather:

Platform: [HackerOne / Bugcrowd / Intigriti / Immunefi]
Bug class: [IDOR / SSRF / XSS / Auth bypass / ...]
Endpoint: [exact URL]
Method: [GET/POST/PUT/DELETE]
Attacker account: [email, ID]
Victim account: [email, ID]
Request: [exact HTTP request]
Response: [exact response showing impact]
Data exposed: [what data type, how sensitive]
CVSS 4.0 factors: [AV, AC, AT, PR, UI, VC, VI, VA, SC, SI, SA]

Title Formula

[Bug Class] in [Exact Endpoint] allows [attacker role] to [impact] [victim scope]

CVSS 4.0 Calculation

CVSS 4.0 replaces the single CIA impact triad with two impact groups:

  • Vulnerable System (VC/VI/VA): the component directly attacked
  • Subsequent System (SC/SI/SA): other systems/users impacted downstream
  • Scope metric removed — replaced by the VC vs SC distinction
  • UI now has three values: None (N) / Passive (P) / Active (A)
  • AT (Attack Requirements): new metric for prerequisite conditions

Key metrics:

  • AV: N=Network, A=Adjacent, L=Local, P=Physical
  • AC: L=Low complexity, H=High complexity
  • AT: N=None (no prerequisites), P=Present (specific config required)
  • PR: N=None, L=Low (user account), H=High (admin)
  • UI: N=None, P=Passive (victim visits URL), A=Active (victim clicks/downloads)
  • VC/VI/VA: H=High, L=Low, N=None (vulnerable system)
  • SC/SI/SA: S=Safety, H=High, L=Low, N=None (subsequent system)

Read the full file on GitHub · 191 lines

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 · -3 lines 371541817519
  2. 1mo ago First seen · 194 lines · 75 tokens per session scan A 9c89b98f2ba7

Subscribe to this mod's changes

report-writer is an agent published in the GitHub repository Awarexone/Agentic-Bug-Hunter (5,315 stars, last pushed 6d ago), licensed MIT. It adds 75 tokens to every session and 1,617 once invoked, about $0.0003 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 2026-08-30.

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