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.
npx skills add Asaiuta/reverse-workbench-skill --skill competition-kerberos-delegationgit clone --depth 1 https://github.com/Asaiuta/reverse-workbench-skillWrote 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.
[](https://agentmods.dev/skills/asaiuta/reverse-workbench-skill/competition-kerberos-delegation)<a href="https://agentmods.dev/skills/asaiuta/reverse-workbench-skill/competition-kerberos-delegation"><img src="https://agentmods.dev/badge/skills/asaiuta/reverse-workbench-skill/competition-kerberos-delegation/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.
<a href="https://agentmods.dev/skills/asaiuta/reverse-workbench-skill/competition-kerberos-delegation"><img src="https://agentmods.dev/badge/skills/asaiuta/reverse-workbench-skill/competition-kerberos-delegation.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00116 | $0.00584 |
| Opus 5 | $0.00058 | $0.00292 |
| Sonnet 5 | $0.00023 | $0.00117 |
| Haiku 4.5 | $0.00012 | $0.00058 |
Grade A, and why
competition-kerberos-delegation 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 10d 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.
This is a copy
100% identical to competition-kerberos-delegation — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 48 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Competition Kerberos Delegation
Use this skill only as a downstream specialization after $ctf-sandbox-orchestrator is already active and has established sandbox assumptions, node ownership, and evidence priorities. If that has not happened yet, return to $ctf-sandbox-orchestrator first.
Use this skill when the hard part is not "is there Kerberos here," but which delegation edge exists, which ticket is being minted, and which service really accepts it.
Reply in Simplified Chinese unless the user explicitly requests English.
Quick Start
- Write the trust chain first: principal -> delegation edge -> ticket type -> target SPN -> accepting service -> resulting privilege.
- Separate ticket possession from accepted privilege.
- Keep SPNs, delegation mode, PAC/group data, encryption type, and service acceptance in one compact evidence block.
- Reproduce one minimal delegation chain before broadening into variants.
- Tie every privilege claim to a specific accepted ticket or service-side effect.
Workflow
1. Identify The Delegation Edge
- Determine whether the path is constrained delegation, unconstrained delegation, resource-based constrained delegation, protocol transition, or another trust edge.
- Inspect SPNs, ACLs, service accounts, SIDHistory, certificate templates, and replication rights only when they affect the active path.
2. Trace Ticket Minting And Acceptance
- Record TGT/TGS type, S4U steps when relevant, delegation flags, PAC or group data, encryption type, cache location, and target SPN.
- Prove which service actually accepts the ticket and what capability appears after acceptance.
3. Report The Effective Edge
- Compress the chain into one replayable path, not a vague "domain compromise" statement.
- Separate candidate edges from the edge that really lands privilege.
Read This Reference
- Load
references/kerberos-delegation.mdfor the delegation checklist, ticket fields to preserve, and common proof mistakes.
What To Preserve
What ships with it
2 files 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.
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.
- 10d ago First seen · 48 lines · 116 tokens per session scan A 245321129a7f
competition-kerberos-delegation is a skill published in the GitHub repository Asaiuta/reverse-workbench-skill (2 stars, last pushed 27d ago), licensed MIT. It adds 116 tokens to every session and 584 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to competition-kerberos-delegation, differing in 0 lines, and is treated as a copy.
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