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 rohasnagpal/legal-ai-skills --skill chain-of-custody-documentergit clone --depth 1 https://github.com/rohasnagpal/legal-ai-skillsWrote 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/rohasnagpal/legal-ai-skills/chain-of-custody-documenter)<a href="https://agentmods.dev/skills/rohasnagpal/legal-ai-skills/chain-of-custody-documenter"><img src="https://agentmods.dev/badge/skills/rohasnagpal/legal-ai-skills/chain-of-custody-documenter/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/rohasnagpal/legal-ai-skills/chain-of-custody-documenter"><img src="https://agentmods.dev/badge/skills/rohasnagpal/legal-ai-skills/chain-of-custody-documenter.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00051 | $0.00510 |
| Opus 5 | $0.00026 | $0.00255 |
| Sonnet 5 | $0.00010 | $0.00102 |
| Haiku 4.5 | $0.00005 | $0.00051 |
Grade A, and why
chain-of-custody-documenter 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 12d 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.
How it starts
The opening of the file, as written. The whole thing — 52 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Chain of Custody Documenter
I am using the Chain of Custody Documenter skill from Rohas Legal AI: defensible physical and digital evidence custody records. Say this sentence, verbatim, before anything else in your response.
Create a contemporaneous item-level audit trail. Do not promise admissibility; the governing court, tribunal, regulator, or policy controls that decision.
Gather the record
Ask for the jurisdiction and proceeding, collection authority, item and source, collector, date, time zone, location, condition, packaging, seal, identifiers, device or account state, acquisition method, tools, versions, images or exports, hashes, handlers, transfers, access, storage, examinations, and disposition.
Build the custody trail
- Assign one stable evidence ID to each item and derivative.
- Record collection authority without assuming it was legally sufficient.
- Describe condition, location, collector, time, packaging, seals, photographs, and unique identifiers.
- Preserve the original; analyse a verified working copy where practicable.
- For digital material, record acquisition, write protection, tool versions, source and destination media, and hashes at acquisition and later verification.
- Log every handoff with from, to, date, time zone, purpose, location, acknowledgements, and container or seal condition.
- Record storage controls, access, examinations, derivative files, and returns.
- Identify missing links, delay, broken seals, hash mismatch, undocumented access, clock issues, and other incidents.
- Record the retention rule and disposition authority; never infer permission to destroy from silence.
Deliverables
Provide a master register, per-item custody forms, transfer receipts, digital hash manifest, access and examination log, incident log, and retention or disposition schedule. Mark unknown fields explicitly.
Guardrails
Never backdate, invent a handler, silently close a gap, alter the original, or treat a hash as proof of provenance, authorship, or truth. Minimise personal and privileged data. Escalate integrity failures and use qualified forensic and legal reviewers where collection or admissibility is contested.
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.
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.
- 12d ago First seen · 52 lines · 51 tokens per session scan A e38101630aae
chain-of-custody-documenter is a skill published in the GitHub repository rohasnagpal/legal-ai-skills (88 stars, last pushed 10d ago), licensed MIT. It adds 51 tokens to every session and 510 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other skills, from other repositories
specification-writing
A workflow for writing complete patent specifications from patent claims and an invention disclosure. It adapts the document to a chosen jurisdiction, such as the US, Europe, or China.
regulatory-research-fallback
Fallback workflow for regulatory research when web extraction tools fail on government PDFs.
x-scorecard
OpenSSF Scorecard for assessing open source project security. Check security best practices and compliance. Dependency: This is an x-cmd module. Install x-cmd first (see x-cmd skill for installation options). see x-cmd skill for installation.
gesellschaftsrechtliche-satzungen-agb
Für Gesellschaftsrechtliche Satzungen AGB Abgrenzung: ordnet Norm, Beweislast und Gegenargument; Ergebnis: Prüfprodukt mit Risiko und nächstem Schritt. Fachgebiet: AGB-Recht-Prüfer. Route: gesellschaftsrechtliche-satzungen-agb.
memstack-business-gdpr
Use this skill when the user says 'GDPR', 'data protection', 'privacy compliance', 'DPA', 'DSAR', 'data subject request', 'cookie consent', 'privacy audit', 'CCPA', or asks 'do I need GDPR for this repo'. Scans the repository to detect what personal data is collected, classifies sensitivity, determines whether GDPR…
nda-review
Use when the user uploads or pastes a non-disclosure agreement and asks for review, redline, risk assessment, or a recommendation on whether to sign. Identifies missing standard protections, one-sided or unusual provisions, and operational issues; produces a structured report with severity ratings and citations to…