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 oscal-compass-lab/compliance-trestle-skills --skill trestle-jinja-templatinggit clone --depth 1 https://github.com/oscal-compass-lab/compliance-trestle-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/oscal-compass-lab/compliance-trestle-skills/trestle-jinja-templating)<a href="https://agentmods.dev/skills/oscal-compass-lab/compliance-trestle-skills/trestle-jinja-templating"><img src="https://agentmods.dev/badge/skills/oscal-compass-lab/compliance-trestle-skills/trestle-jinja-templating/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/oscal-compass-lab/compliance-trestle-skills/trestle-jinja-templating"><img src="https://agentmods.dev/badge/skills/oscal-compass-lab/compliance-trestle-skills/trestle-jinja-templating.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 | $0.00097 | $0.02447 |
| Opus 5 | $0.00048 | $0.01223 |
| Sonnet 5 | $0.00019 | $0.00489 |
| Haiku 4.5 | $0.00010 | $0.00245 |
Grade A, and why
trestle-jinja-templating 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 — 358 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Trestle Jinja Templating
Trestle includes a Jinja2 templating system (trestle author jinja).
Use it to make compliance documents from OSCAL data.
Templates can reference SSPs, profiles, and catalogs.
Output can be markdown or another document format.
Command Usage
trestle author jinja -i <template_path> -o <output_path> [options]
Custom Jinja Tags
Trestle extends Jinja2 with three custom tags:
mdsection_include
Include one section from a markdown file. Match the heading title:
{% mdsection_include "path/to/file.md" "Section Title" heading_level=2 %}
heading_levelsets which heading level to search. The default follows the document structure.- The tag extracts the section. Extraction stops at the next heading of the same level or a higher level.
md_clean_include
Include a full markdown file and strip YAML frontmatter:
{% md_clean_include "path/to/file.md" heading_level=2 %}
- Removes YAML frontmatter (between
---markers) - Adjusts heading levels relative to
heading_level - Use this tag to build a document from more than one markdown file.
md_datestamp
Insert a formatted date stamp:
{% md_datestamp format="%Y-%m-%d" newline=True %}
formatfollows Python strftime format stringsnewlineadds a trailing newline (default:True)
Custom Jinja Filters
| Filter | Description | Example |
|---|---|---|
as_list |
Convert value to a list | {{ value | as_list }} |
get_default |
Get the default value | {{ param | get_default }} |
first_or_none |
Get first element or None | {{ items | first_or_none }} |
get_party |
Get party by UUID from SSP | {{ ssp | get_party(uuid) }} |
parties_for_role |
Get all parties for a role ID | {{ ssp | parties_for_role(role_id) }} |
diagram_href |
Get diagram link href | {{ diagram | diagram_href }} |
Context Objects
When an SSP is provided (--ssp), these objects are available in templates:
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 · 358 lines · 97 tokens per session scan A 4a3065db1461
trestle-jinja-templating is a skill published in the GitHub repository oscal-compass-lab/compliance-trestle-skills (16 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 97 tokens to every session and 2,447 once invoked, about $0.0005 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.
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