Deepsec Documentation Guide
vercel-labs/deepsec
Points the agent at deepsec's own docs to answer questions about initializing, configuring, resuming, scanning with and extending the vulnerability scanner.
Reconstruct how principal, actor, issuer, audience, assurance, scopes, and delegated authority change across requests, tokens, services, queues, and stored artifacts.
Install Trace Identity Propagation
$ npx skills add cyberful/cyberful --skill trace-identity-propagation -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install cyberful/cyberful trace-identity-propagation --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/cyberful/cyberful.git skills-src && mkdir -p .claude/skills && cp -r skills-src/cyberful/builtin/skills/trace-identity-propagation .claude/skills/trace-identity-propagation && rm -rf skills-srcUse ~/.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/
Install the "trace-identity-propagation" agent skill from https://github.com/cyberful/cyberful/tree/main/cyberful/builtin/skills/trace-identity-propagation into .claude/skills/trace-identity-propagation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "trace-identity-propagation", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/cyberful/cyberful/tree/main/cyberful/builtin/skills/trace-identity-propagationType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add cyberful/cyberful --skill trace-identity-propagation -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install cyberful/cyberful trace-identity-propagation --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/cyberful/cyberful.git skills-src && mkdir -p .agents/skills && cp -r skills-src/cyberful/builtin/skills/trace-identity-propagation .agents/skills/trace-identity-propagation && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "trace-identity-propagation" agent skill from https://github.com/cyberful/cyberful/tree/main/cyberful/builtin/skills/trace-identity-propagation into .agents/skills/trace-identity-propagation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "trace-identity-propagation", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add cyberful/cyberful --skill trace-identity-propagation -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install cyberful/cyberful trace-identity-propagation --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/cyberful/cyberful.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/cyberful/builtin/skills/trace-identity-propagation .cursor/skills/trace-identity-propagation && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "trace-identity-propagation" agent skill from https://github.com/cyberful/cyberful/tree/main/cyberful/builtin/skills/trace-identity-propagation into .cursor/skills/trace-identity-propagation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "trace-identity-propagation", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/cyberful/cyberful.git --path cyberful/builtin/skills/trace-identity-propagation--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add cyberful/cyberful --skill trace-identity-propagation -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install cyberful/cyberful trace-identity-propagation --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/cyberful/cyberful.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/cyberful/builtin/skills/trace-identity-propagation .gemini/skills/trace-identity-propagation && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "trace-identity-propagation" agent skill from https://github.com/cyberful/cyberful/tree/main/cyberful/builtin/skills/trace-identity-propagation into .gemini/skills/trace-identity-propagation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "trace-identity-propagation", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install cyberful/cyberful trace-identity-propagationInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add cyberful/cyberful --skill trace-identity-propagation -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/cyberful/cyberful.git skills-src && mkdir -p .github/skills && cp -r skills-src/cyberful/builtin/skills/trace-identity-propagation .github/skills/trace-identity-propagation && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "trace-identity-propagation" agent skill from https://github.com/cyberful/cyberful/tree/main/cyberful/builtin/skills/trace-identity-propagation into .github/skills/trace-identity-propagation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "trace-identity-propagation", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add cyberful/cyberful --skill trace-identity-propagation -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install cyberful/cyberful trace-identity-propagation --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/cyberful/cyberful.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/cyberful/builtin/skills/trace-identity-propagation .opencode/skills/trace-identity-propagation && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "trace-identity-propagation" agent skill from https://github.com/cyberful/cyberful/tree/main/cyberful/builtin/skills/trace-identity-propagation into .opencode/skills/trace-identity-propagation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "trace-identity-propagation", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
trace-identity-propagation- GitHub stars
- 135
- Token cost
- ~730 tokens
- SKILL.md length
- 224 words
- Files
- 9 (incl. scripts, references, assets)
- Skills in repo
- 85
- Repo updated
- First seen
- Licence
- AGPL-3.0
At a glance
Reconstruct how principal, actor, issuer, audience, assurance, scopes, and delegated authority change across requests, tokens, services, queues, and stored artifacts.
- Security work in your project
- SKILL.md covers Assemble the trace, Normalize offline evidence and Locate the failed contract
- Runs Python scripts from its folder
What it does
Trace Identity Propagation is an agent skill from cyberful/cyberful. Reconstruct how principal, actor, issuer, audience, assurance, scopes, and delegated authority change across requests, tokens, services, queues, and stored artifacts.
Its SKILL.md is about 730 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/identity-propagation-evidence.schema.json` and `assets/identity-propagation.example.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
- “/trace-identity-propagation”
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
Trace Identity Propagation loads about 730 tokens when it runs, and up to ~1.1k if it reads all its reference files. Until then it costs about 48 tokens; SKILL.md has 224 words of instructions outside code blocks.
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). 224 words, ~730 tokens.
Download SKILL.mdSave it as
.claude/skills/trace-identity-propagation/SKILL.md (or your agent's skills folder). This skill also uses 8 other files; get the full folder from GitHub.- name
- trace-identity-propagation
- description
- Reconstruct how principal, actor, issuer, audience, assurance, scopes, and delegated authority change across requests, tokens, services, queues, and stored artifacts.
- metadata.domain
- identity-security
- metadata.subdomain
- identity-propagation
- metadata.triggers
- identity propagation trace, principal context flow, delegated identity chain, token claim transformation, actor subject confusion, authentication context…
- metadata.tags
- identity, claims, delegation, token-exchange, dataflow, causal-trace
Trace Identity Propagation
Reconstruct identity as a sequence of evidence-backed transformations. Keep actor, subject, client, service, tenant, issuer, audience, assurance, credential, and delegated authority separate at every boundary.
Assemble the trace
Read references/identity-propagation-method.md. Collect controlled request and response records, token summaries, gateway logs, service logs, queue envelopes, policy inputs, and storage effects. Hash raw artifacts and record only the minimum non-secret excerpt needed to locate each event.
Order events by a stable trace-specific sequence, not by wall-clock time alone. Mark gaps, fan-out, retries, asynchronous continuations, and points where an end-user identity becomes a workload identity or vice versa.
Normalize offline evidence
Use scripts/trace_identity_propagation.py for a deterministic offline delta ledger. Copy assets/identity-propagation.example.json, retain assets/identity-propagation.schema.json, and interpret output against assets/identity-propagation-evidence.schema.json.
The script reads no environment secrets, opens no network connection, invokes no child process, enforces a global monotonic deadline, and writes bounded raw evidence atomically. It identifies changed fields; it does not decide whether a change is authorized or vulnerable.
Locate the failed contract
Compare every transformation with the receiving component's trust contract. Determine whether issuer, subject namespace, audience, tenant, scopes, assurance, actor, delegation chain, or credential binding is dropped, widened, synthesized, or accepted from the wrong authority.
Report the last trustworthy event, first unsupported transformation, downstream decision, durable effect, and corroborating artifact hashes. Route tenant-specific divergence to trace-tenant-context-propagation and enforcement gaps to audit-access-policy-enforcement or test-authorization-boundaries.
© 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/trace-identity-propagation of cyberful/cyberful.
- SKILL.md
- agents/openai.yaml
- assets/identity-propagation-evidence.schema.json
- assets/identity-propagation.example.json
- assets/identity-propagation.schema.json
- references/identity-propagation-method.md
- scripts/manifest.json
- scripts/trace_identity_propagation.py
- tests/test_trace_identity_propagation.py
Open the folder on GitHubat commit ec598a6
Compare with similar skills
Trace Identity Propagation 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Trace Identity Propagation this skillcyberful/cyberful | 135 | — | ~730 | Automated safety check: Pass | AGPL-3.0 | |
| Deepsec Documentation Guidevercel-labs/deepsec | 8.1k | — | ~956 | Automated safety check: Pass | Apache-2.0 | |
| Skill Scannergetsentry/skills | 1k | 4 repos | ~2.5k | Automated safety check: Warn | Apache-2.0 | |
| Serenity Aleabitoreddityan-labs/serenity-aleabitoreddit | 481 | 1 repos | ~3.3k | Automated safety check: Pass | None | |
| Security Alert Triageelastic/agent-skills | 592 | 1 repos | ~3.5k | Automated safety check: Notes | Apache-2.0 | |
| Shiro Attack CLISummerSec/ShiroAttack2 | 2.6k | — | ~945 | Automated safety check: Pass | MIT |
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Related
Categories
Questions about Trace Identity Propagation
What does Trace Identity Propagation do?
Reconstruct how principal, actor, issuer, audience, assurance, scopes, and delegated authority change across requests, tokens, services, queues, and stored artifacts. Trace Identity Propagation is an agent skill from cyberful/cyberful. Reconstruct how principal, actor, issuer, audience, assurance, scopes, and delegated authority change across requests, tokens, services, queues, and stored artifacts.
When should I use Trace Identity Propagation?
Trace Identity Propagation fits situations like: security work in your project.
How do I install Trace Identity Propagation in Claude Code?
Run `npx skills add cyberful/cyberful --skill trace-identity-propagation -a claude-code`. Or copy the skill folder (cyberful/builtin/skills/trace-identity-propagation in cyberful/cyberful) into .claude/skills/trace-identity-propagation in your project. Claude Code loads it when a task matches its description.
How do I install Trace Identity Propagation in Codex?
Run `npx skills add cyberful/cyberful --skill trace-identity-propagation -a codex`. Or copy the skill folder (cyberful/builtin/skills/trace-identity-propagation in cyberful/cyberful) into .agents/skills/trace-identity-propagation in your project. Codex loads it when a task matches its description.
Can I use Trace Identity Propagation 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 trace-identity-propagation -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/trace-identity-propagation, .gemini/skills/trace-identity-propagation, .github/skills/trace-identity-propagation and .opencode/skills/trace-identity-propagation in your project.
What does Trace Identity Propagation need to run?
Going by SKILL.md and its folder, Trace Identity Propagation needs Python for the scripts in its folder. Our summary lists: Python 3.
Does Trace Identity Propagation 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 Trace Identity Propagation 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 Trace Identity Propagation use?
Trace Identity Propagation 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 Trace Identity Propagation use?
About 730 tokens (SKILL.md is roughly 2.9k 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 400 tokens, read only when the agent opens those files.
What are the alternatives to Trace Identity Propagation?
Skills that share tags, products or a category with Trace Identity Propagation: 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 Trace Identity Propagation?
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.