Marin is an open-source research program, software platform, and community for developing foundation models such as large language models. Researchers use it for data preparation, tokenization, pretraining, posttraining, evaluation, and related experiments, including work on audio-text, DNA, and protein models. The catalogue entries are add-ons that support workflows around Marin.
Borrowing it
Nothing to install: this file belongs to marin-community/marin. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/marin-community/marin/main/.agents/skills/trace-pulumi-diff/SKILL.mdgit clone --depth 1 https://github.com/marin-community/marinWrote 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/marin-community/marin/trace-pulumi-diff)<a href="https://agentmods.dev/skills/marin-community/marin/trace-pulumi-diff"><img src="https://agentmods.dev/badge/skills/marin-community/marin/trace-pulumi-diff/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/marin-community/marin/trace-pulumi-diff"><img src="https://agentmods.dev/badge/skills/marin-community/marin/trace-pulumi-diff.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 | $0.00067 | $0.00634 |
| Opus 5.5 | $0.00027 | $0.00254 |
| Sonnet 5.5 | $0.00013 | $0.00127 |
| Haiku 4.5 | $0.00007 | $0.00063 |
Grade A, and why
trace-pulumi-diff scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 66 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Trace a Pulumi diff
Work only with the marin-iac project in infra/pulumi. Require an explicit stack name.
Preview current main
Read infra/pulumi/README.md and satisfy its credentials and stack-specific prerequisites. Fetch origin/main and run from a clean checkout at that commit. Preserve existing work; use another worktree when necessary.
Prepare the environment from the repository root:
uv sync --package marin-iac --extra deploy --frozen
export PULUMI_PYTHON_CMD="$PWD/.venv/bin/python"
Run the preview without changing the selected stack:
pulumi -C infra/pulumi preview --stack <stack> --diff --color never
Keep the raw preview local. It may contain decrypted identifiers. If the preview is empty, report that the stack has no pending diff and stop.
Find the deployed commit
Read recent history without secrets:
pulumi -C infra/pulumi stack history \
--stack <stack> --json --page-size 100 > /tmp/marin-pulumi-history-<stack>.json
jq -r '
map(select(.kind == "update" and .result == "succeeded"))
| first
| [.startTime, .environment["git.head"], .environment["git.dirty"]]
| @tsv
' /tmp/marin-pulumi-history-<stack>.json
Use git.head only when it is a commit on origin/main and git.dirty is false. If either condition fails, report that an exact Git baseline is unavailable and stop attribution.
Attribute the preview
List merged commits after the deployed commit:
git log --first-parent --format='%H%x09%s' <deployed-sha>..origin/main
Inspect each candidate with git show. Match concrete preview resource names and changed properties to the code or configuration diff. Do not attribute a change merely because its commit is in the range.
Map a matching commit to its pull request:
gh api repos/marin-community/marin/commits/<commit>/pulls \
--jq '.[] | [.number, .title, .html_url] | @tsv'
Report each preview change with its matching PR and the file or hunk that explains it. Report changes with no matching commit as live drift or unresolved attribution. A preview can contain changes from multiple PRs.
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.
- 2mo ago First seen · 66 lines · 67 tokens per session scan A 6649685c0bc2
trace-pulumi-diff is a skill published in the GitHub repository marin-community/marin (4,074 stars, last pushed today), licensed Apache-2.0. It adds 67 tokens to every session and 634 once invoked, about $0.0003 per session on Opus 5.5. 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.
trace-pulumi-diff compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| trace-pulumi-diffmarin-community/marin | Skill | 4.1k | today | Apache-2.0 | A | 67 | Codex |
| imagegenopenai/codex | Skill | 133k | yesterday | Apache-2.0 | A | 113 | Codex |
| playwright-climicrosoft/playwright | Skill | 99k | yesterday | Apache-2.0 | A | 19 | Claude Code |
| local-ai-agentsmicrosoft/ai-agents-for-beginners | Skill | 79k | 4d ago | MIT | A | 200 | Claude Code, Codex |
| systematic-debuggingobra/superpowers | Skill | 313k | 3d ago | MIT | A | 21 | Claude Code |
| next-cache-components-adoptionvercel/next.js | Skill | 143k | today | MIT | A | 95 | Claude Code |
| next-partial-prefetching-adoptionvercel/next.js | Skill | 143k | today | MIT | A | 103 | Claude Code |