bug-bounty

bug-bounty is a skill for Claude Code, Codex from Gabson0x/bountyforge. It costs 371 tokens per session (28,174 once invoked), scanned F, original, no licence file.

A workflow for bug-bounty security research, from finding an organisation's assets and technologies to reviewing source code and testing for vulnerabilities. Bug bounty programmes pay researchers for eligible security reports within defined scope.

In plain words
What is it for?
Use it for target reconnaissance, scope and technology research, threat modelling, source audits, and vulnerability hunting.
Why use it?
It organises the many stages of a hunt and reduces the chance of skipping reconnaissance, preparation, or validation. It covers common web and API weakness types such as access-control errors, injection, and cross-site scripting.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Good fit Use it for target reconnaissance, scope and technology research, threat modelling, source audits, and vulnerability hunting.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/gabson0x/bountyforge/bug-bounty
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.

Any agent
npx skills add Gabson0x/bountyforge --skill bug-bounty
Clone the repo
git clone --depth 1 https://github.com/Gabson0x/bountyforge

Made for: Claude Code, Codex.

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 bug-bounty

README.md
[![agentmods](https://agentmods.dev/badge/skills/gabson0x/bountyforge/bug-bounty/github.svg)](https://agentmods.dev/skills/gabson0x/bountyforge/bug-bounty)
Your own site
<a href="https://agentmods.dev/skills/gabson0x/bountyforge/bug-bounty"><img src="https://agentmods.dev/badge/skills/gabson0x/bountyforge/bug-bounty/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 bug-bounty

Your own site · 80×15
<a href="https://agentmods.dev/skills/gabson0x/bountyforge/bug-bounty"><img src="https://agentmods.dev/badge/skills/gabson0x/bountyforge/bug-bounty.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 371 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 28,174 The whole file, excluding the scripts and references it only reads on demand.
Security scan F 7 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 $0.00371 $0.28174
Opus 5.5 $0.00148 $0.11270
Sonnet 5.5 $0.00074 $0.05635
Haiku 4.5 $0.00037 $0.02817

Measured 1mo ago against content hash 1840b3218dc1, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade F, and why

bug-bounty scanned grade F with 7 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.

Instruction-override phrasingmediumPrompt injection

Text telling the model to disregard its earlier instructions or safety rules is the shape of a prompt injection, whoever wrote it.

1. **Trigger + prompt source** — `issues: opened` → AI triage bot reads `github.event.issue.body`. The body IS the prompt. HTML comments (`<!-- ignore previous instructions -->`) are invisible in GitHub UI but included i

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

Hidden instructionshighPrompt injection

Directives inside HTML comments, invisible characters or bidirectional overrides are read by the model and not by the person reviewing the file.

1. **Trigger + prompt source** — `issues: opened` → AI triage bot reads `github.event.issue.body`. The body IS the prompt. HTML comments (`<!-- ignore previous instructions -->`) are invisible in GitHub UI but included i

Sends data to an external URLlowData exfiltration

A POST to an outside endpoint may be telemetry or may be exfiltration; either way the mod talks to somewhere, and you should know where.

curl -s -X PUT "https://TARGET-APP.firebaseio.com/test.json" -d '"pwned"'

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

Harvests environment variablesmediumData exfiltration

Enumerating or grepping the environment for keys collects credentials unrelated to what the mod says it does.

4. **Payload stealth** — tj-actions memdump.py: extract secrets from Runner.Worker process memory via `/proc/PID/maps` + `/proc/PID/mem`, encrypt with AES+RSA, output to workflow log. Logs are publicly visible but encryp

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

Cloud metadata endpointmediumServer-side request forgery

One request to 169.254.169.254 can return temporary IAM credentials.

| SSRF (any) | Cloud metadata 169.254.169.254 | IAM credential exfil -> RCE |

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

DOMAIN=$(curl -s https://api.mail.tm/domains | jq -r '.[0].domain')

Runs shell commandslowCapability

Expected in a hook, worth knowing in a rule or an instructions file.

grep -rn "eval(\|innerHTML\|dangerouslySetInner\|execSync" --include="*.ts" --include="*.js" | grep -v node_modules
skills/bug-bounty/SKILL.md · 2,308 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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 · +2 lines 1840b3218dc1
  2. 1mo ago First seen · 2,306 lines · 371 tokens per session scan F 7c6548b71aa6

Subscribe to this mod's changes

bug-bounty is a skill published in the GitHub repository Gabson0x/bountyforge (455 stars, last pushed 1mo ago), with no licence file. It adds 371 tokens to every session and 28,174 once invoked, about $0.0015 per session on Opus 5.5. A static security scan graded it F with 7 findings (instruction-override phrasing, hidden instructions, sends data to an external url). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-14.

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