Agent skill

Assess Identity Architecture

by cyberful in cyberful/cyberful

Assess identity trust topology, assurance boundaries, issuer and relying-party responsibilities, and failure containment before testing a specific authentication or authorization mechanism.

AGPL-3.0Auto-check passedBackend & APIs

Install Assess Identity Architecture

skills CLI
$ npx skills add cyberful/cyberful --skill assess-identity-architecture -a claude-code

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

GitHub CLI
$ gh skill install cyberful/cyberful assess-identity-architecture --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/assess-identity-architecture .claude/skills/assess-identity-architecture && 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
assess-identity-architecture
GitHub stars
135
Token cost
~710 tokens
SKILL.md length
241 words
Files
4 (incl. references, assets)
Skills in repo
85
Repo updated
First seen
Licence
AGPL-3.0

At a glance

Assess identity trust topology, assurance boundaries, issuer and relying-party responsibilities, and failure containment before testing a specific authentication or authorization mechanism.

  • Backend & APIs work in your project
  • SKILL.md covers Establish the trust topology, Evaluate architectural claims and Produce the assessment
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Assess Identity Architecture is an agent skill from cyberful/cyberful. Assess identity trust topology, assurance boundaries, issuer and relying-party responsibilities, and failure containment before testing a specific authentication or authorization mechanism.

Its SKILL.md is about 710 tokens, which your agent loads only when the skill is triggered. The skill folder holds 6 other files, including reference files and assets (for example `agents/openai.yaml` and `references/identity-architecture-review.md`).

It sits in Backend & APIs. 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

  • Backend & APIs work in your project

Example prompts

  • “/assess-identity-architecture”

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

    No scripts in the folder and no shell commands in SKILL.md.

    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

Assess Identity Architecture loads about 710 tokens when it runs, and up to ~1.3k if it reads all its reference files. Until then it costs about 55 tokens; SKILL.md has 241 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~55
When it runs · the whole SKILL.md, loaded when a task matches
~710
With references · SKILL.md plus every file in references/, read only if the agent opens them
~1.3k

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); files beside SKILL.md are not scanned.

SKILL.md

The full file from cyberful/cyberful at commit ec598a6, republished under its AGPL-3.0 licence (© cyberful). 241 words, ~710 tokens.

Download SKILL.mdSave it as .claude/skills/assess-identity-architecture/SKILL.md (or your agent's skills folder). This skill also uses 3 other files; get the full folder from GitHub.
name
assess-identity-architecture
description
Assess identity trust topology, assurance boundaries, issuer and relying-party responsibilities, and failure containment before testing a specific authentication or authorization mechanism.
metadata.domain
identity-security
metadata.subdomain
identity-architecture
metadata.triggers
identity architecture review, federation trust topology, identity assurance boundary, issuer relying party review, authentication architecture assessment
metadata.tags
identity, trust-boundary, federation, assurance, architecture

Assess Identity Architecture

Model who establishes an identity fact, who transforms it, who consumes it, and which component owns the resulting security decision. Use this skill for architecture-wide assurance and failure containment; route concrete policy checks to audit-access-policy-enforcement and protocol execution to the relevant test skill.

Establish the trust topology

Inventory human, workload, device, support, and external identities. For every issuer, broker, directory, authenticator, token service, gateway, relying party, policy decision point, and enforcement point, record its operator, trust anchors, identifiers, accepted assurance, revocation source, and tenant boundary.

Copy assets/identity-trust-matrix.csv when a durable topology is required. Read references/identity-architecture-review.md before assessing a federation, migration, or shared identity platform.

Evaluate architectural claims

Trace each material claim from authoritative source to enforcement. Distinguish proofing, authentication, authorization, delegation, impersonation, and tenant selection. Check whether transformations preserve issuer, subject, audience, client, assurance, freshness, actor-versus-subject, and revocation semantics.

Challenge the architecture with loss of one trust component: compromised client, stale directory, unavailable revocation feed, confused broker, duplicated subject, tenant reassignment, support override, or clock/key transition. Determine whether the failure is contained, detected, and recoverable without trusting the failed component.

Produce the assessment

Report trust edges, authoritative owners, assumptions, unresolved evidence, concentration risk, and concrete specialist routes. An architectural weakness is not a demonstrated exploit; separate design exposure from an observed unauthorized decision.

Do not create principals, modify federation, rotate keys, or exercise recovery paths without explicit authority. Use synthetic identities and redacted claim summaries in durable artifacts.

© 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 3 other files (references, assets) in cyberful/builtin/skills/assess-identity-architecture of cyberful/cyberful.

  • SKILL.md
  • agents/openai.yaml
  • assets/identity-trust-matrix.csv
  • references/identity-architecture-review.md

Open the folder on GitHubat commit ec598a6

Compare with similar skills

Assess Identity Architecture 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.

Assess Identity Architecture compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Assess Identity Architecture this skillcyberful/cyberful135—~710Automated safety check: PassAGPL-3.0
Security Reviewdoorkeeper-gem/doorkeeper5.5k—~1.4kAutomated safety check: PassMIT
Project Securityjohnku2011/boilerplates-with-ai-skills240—~650Automated safety check: PassMIT
Ton Vulnerability Scannertrailofbits/skills7.5k—~3.8kAutomated safety check: PassCC-BY-SA-4.0
Sast JWTutkusen/sast-skills1.3k—~6kAutomated safety check: PassMIT
Implementing Device Posture Assessment In Zero Trustmukul975/Anthropic-Cybersecurity-Skills34k—~4.1kAutomated safety check: PassApache-2.0

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Questions about Assess Identity Architecture

What does Assess Identity Architecture do?

Assess identity trust topology, assurance boundaries, issuer and relying-party responsibilities, and failure containment before testing a specific authentication or authorization mechanism. Assess Identity Architecture is an agent skill from cyberful/cyberful. Assess identity trust topology, assurance boundaries, issuer and relying-party responsibilities, and failure containment before testing a specific authentication or authorization mechanism.

When should I use Assess Identity Architecture?

Assess Identity Architecture fits situations like: backend & APIs work in your project.

How do I install Assess Identity Architecture in Claude Code?

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

How do I install Assess Identity Architecture in Codex?

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

Can I use Assess Identity Architecture 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 assess-identity-architecture -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/assess-identity-architecture, .gemini/skills/assess-identity-architecture, .github/skills/assess-identity-architecture and .opencode/skills/assess-identity-architecture in your project.

What does Assess Identity Architecture need to run?

SKILL.md names no scripts, command-line tools or credentials: Assess Identity Architecture is instructions for the agent only.

Does Assess Identity Architecture 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 Assess Identity Architecture 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. Review the folder before installing.

What licence does Assess Identity Architecture use?

Assess Identity Architecture 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 Assess Identity Architecture use?

About 710 tokens (SKILL.md is roughly 2.8k 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 615 tokens, read only when the agent opens those files.

What are the alternatives to Assess Identity Architecture?

Skills that share tags, products or a category with Assess Identity Architecture: Security Review (doorkeeper-gem/doorkeeper, 5.5k stars), Project Security (johnku2011/boilerplates-with-ai-skills, 240 stars), Ton Vulnerability Scanner (trailofbits/skills, 7.5k stars) and Sast JWT (utkusen/sast-skills, 1.3k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Assess Identity Architecture?

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.