Agent skill

Analyze HTTP Traffic Evidence

by cyberful in cyberful/cyberful

Transform bounded HAR captures into deterministic HTTP evidence about methods, origins, paths, status classes, header presence, redirects, cookies, and body sizes without replaying traffic or…

AGPL-3.0Auto-check passedSecurity

Install Analyze HTTP Traffic Evidence

skills CLI
$ npx skills add cyberful/cyberful --skill analyze-http-traffic-evidence -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install cyberful/cyberful analyze-http-traffic-evidence --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/cyberful/cyberful.git skills-src && mkdir -p .claude/skills && cp -r skills-src/cyberful/builtin/skills/analyze-http-traffic-evidence .claude/skills/analyze-http-traffic-evidence && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
analyze-http-traffic-evidence
GitHub stars
135
Token cost
~544 tokens
SKILL.md length
145 words
Files
9 (incl. scripts, references, assets)
Skills in repo
85
Repo updated
First seen
Licence
AGPL-3.0

At a glance

Transform bounded HAR captures into deterministic HTTP evidence about methods, origins, paths, status classes, header presence, redirects, cookies, and body sizes without replaying traffic or…

  • Security work in your project
  • SKILL.md covers Normalize without losing… and Reconcile transactions
  • Runs Python scripts from its folder

What it does

Analyze HTTP Traffic Evidence is an agent skill from cyberful/cyberful. Transform bounded HAR captures into deterministic HTTP evidence about methods, origins, paths, status classes, header presence, redirects, cookies, and body sizes without replaying traffic or emitting vulnerability verdicts.

Its SKILL.md is about 540 tokens, which your agent loads only when the skill is triggered. The skill folder holds 13 other files, including scripts, reference files and assets (for example `agents/openai.yaml`, `assets/http-traffic-analysis.example.json` and `assets/http-traffic-analysis.schema.json`).

It sits in Security. The repository describes itself as: Cyberful is an open-source AI Red Team for discovering, exploiting, verifying, and remediating vulnerabilities. The licence is AGPL-3.0.

When your agent uses it

  • Security work in your project

Example prompts

  • “/analyze-http-traffic-evidence”

Requirements

  • Python 3

What it can do on your machine

Read from SKILL.md and the folder at commit ec598a6. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Ships 2 files in scripts/ (Python), which the agent can run.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Analyze HTTP Traffic Evidence loads about 544 tokens when it runs, and up to ~788 if it reads all its reference files. Until then it costs about 64 tokens; SKILL.md has 145 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~64
When it runs · the whole SKILL.md, loaded when a task matches
~544
With references · SKILL.md plus every file in references/, read only if the agent opens them
~788

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); the scripts in this folder are not scanned.

SKILL.md

The full file from cyberful/cyberful at commit ec598a6, republished under its AGPL-3.0 licence (© cyberful). 145 words, ~544 tokens.

Download SKILL.mdSave it as .claude/skills/analyze-http-traffic-evidence/SKILL.md (or your agent's skills folder). This skill also uses 8 other files; get the full folder from GitHub.
name
analyze-http-traffic-evidence
description
Transform bounded HAR captures into deterministic HTTP evidence about methods, origins, paths, status classes, header presence, redirects, cookies, and body sizes without replaying traffic or emitting vulnerability verdicts.
metadata.domain
evidence-analysis
metadata.subdomain
http-traffic
metadata.triggers
analyze HTTP traffic evidence, HAR security analysis, inspect captured web requests, correlate HTTP transactions, review proxy traffic offline, summarize HTTP…
metadata.tags
http, har, traffic-analysis, web-evidence, offline-analysis, correlation

Analyze HTTP Traffic Evidence

Use this skill after requests have already been captured through an authorized browser, proxy, or harness. It analyzes immutable local evidence and never replays a request.

Normalize without losing provenance

Read references/http-evidence-method.md. Stage scripts/analyze_http_traffic_evidence.py, assets/http-traffic-analysis.example.json, and assets/http-traffic-analysis.schema.json. The analyzer accepts confined regular HAR files, snapshots their bytes in memory, records each digest, and emits only bounded structural fields under assets/http-traffic-evidence.schema.json.

Interpret evidence tags as routing aids: status class, authorization-header presence, cookie issuance, redirect origin changes, and size relationships are observations, not vulnerabilities. Return to the original capture for exact values, timing, and bodies; do not infer server behavior from a single client-side record.

Reconcile transactions

Compare authenticated and unauthenticated captures, roles, tenants, methods, content types, cache states, retries, and redirects only when capture conditions are known. Preserve source path, source digest, HAR entry index, and normalized URL components for every conclusion.

© cyberful, AGPL-3.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 8 other files (scripts, references, assets) in cyberful/builtin/skills/analyze-http-traffic-evidence of cyberful/cyberful.

  • SKILL.md
  • agents/openai.yaml
  • assets/http-traffic-analysis.example.json
  • assets/http-traffic-analysis.schema.json
  • assets/http-traffic-evidence.schema.json
  • references/http-evidence-method.md
  • scripts/analyze_http_traffic_evidence.py
  • scripts/manifest.json
  • tests/test_analyze_http_traffic_evidence.py

Open the folder on GitHubat commit ec598a6

Compare with similar skills

Analyze HTTP Traffic Evidence next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Analyze HTTP Traffic Evidence compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Analyze HTTP Traffic Evidence this skillcyberful/cyberful135—~544Automated safety check: PassAGPL-3.0
Deepsec Documentation Guidevercel-labs/deepsec8.1k—~956Automated safety check: PassApache-2.0
Skill Scannergetsentry/skills1k4 repos~2.5kAutomated safety check: WarnApache-2.0
Serenity Aleabitoreddityan-labs/serenity-aleabitoreddit4811 repos~3.3kAutomated safety check: PassNone
Security Alert Triageelastic/agent-skills5921 repos~3.5kAutomated safety check: NotesApache-2.0
Shiro Attack CLISummerSec/ShiroAttack22.6k—~945Automated safety check: PassMIT

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Categories

Questions about Analyze HTTP Traffic Evidence

What does Analyze HTTP Traffic Evidence do?

Transform bounded HAR captures into deterministic HTTP evidence about methods, origins, paths, status classes, header presence, redirects, cookies, and body sizes without replaying traffic or…. Analyze HTTP Traffic Evidence is an agent skill from cyberful/cyberful. Transform bounded HAR captures into deterministic HTTP evidence about methods, origins, paths, status classes, header presence, redirects, cookies, and body sizes without replaying traffic or emitting vulnerability verdicts.

When should I use Analyze HTTP Traffic Evidence?

Analyze HTTP Traffic Evidence fits situations like: security work in your project.

How do I install Analyze HTTP Traffic Evidence in Claude Code?

Run `npx skills add cyberful/cyberful --skill analyze-http-traffic-evidence -a claude-code`. Or copy the skill folder (cyberful/builtin/skills/analyze-http-traffic-evidence in cyberful/cyberful) into .claude/skills/analyze-http-traffic-evidence in your project. Claude Code loads it when a task matches its description.

How do I install Analyze HTTP Traffic Evidence in Codex?

Run `npx skills add cyberful/cyberful --skill analyze-http-traffic-evidence -a codex`. Or copy the skill folder (cyberful/builtin/skills/analyze-http-traffic-evidence in cyberful/cyberful) into .agents/skills/analyze-http-traffic-evidence in your project. Codex loads it when a task matches its description.

Can I use Analyze HTTP Traffic Evidence in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add cyberful/cyberful --skill analyze-http-traffic-evidence -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/analyze-http-traffic-evidence, .gemini/skills/analyze-http-traffic-evidence, .github/skills/analyze-http-traffic-evidence and .opencode/skills/analyze-http-traffic-evidence in your project.

What does Analyze HTTP Traffic Evidence need to run?

Going by SKILL.md and its folder, Analyze HTTP Traffic Evidence needs Python for the scripts in its folder. Our summary lists: Python 3.

Does Analyze HTTP Traffic Evidence access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Analyze HTTP Traffic Evidence safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.

What licence does Analyze HTTP Traffic Evidence use?

Analyze HTTP Traffic Evidence is published under the AGPL-3.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Analyze HTTP Traffic Evidence use?

About 544 tokens (SKILL.md is roughly 2.2k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 244 tokens, read only when the agent opens those files.

What are the alternatives to Analyze HTTP Traffic Evidence?

Skills that share tags, products or a category with Analyze HTTP Traffic Evidence: Deepsec Documentation Guide (vercel-labs/deepsec, 8.1k stars), Skill Scanner (getsentry/skills, 1k stars), Serenity Aleabitoreddit (yan-labs/serenity-aleabitoreddit, 481 stars) and Security Alert Triage (elastic/agent-skills, 592 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Analyze HTTP Traffic Evidence?

cyberful (a GitHub organization) maintains it in cyberful/cyberful, which has 135 GitHub stars. The repository holds 85 skills in this directory. The repository was last updated on August 24, 2026.

Source: cyberful/cyberful on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.