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 sablier-labs/agent-skills --skill bttgit clone --depth 1 https://github.com/sablier-labs/agent-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/sablier-labs/agent-skills/btt)<a href="https://agentmods.dev/skills/sablier-labs/agent-skills/btt"><img src="https://agentmods.dev/badge/skills/sablier-labs/agent-skills/btt/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/sablier-labs/agent-skills/btt"><img src="https://agentmods.dev/badge/skills/sablier-labs/agent-skills/btt.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 | $0.00053 | $0.01896 |
| Opus 5.5 | $0.00021 | $0.00758 |
| Sonnet 5.5 | $0.00011 | $0.00379 |
| Haiku 4.5 | $0.00005 | $0.00190 |
Grade A, and why
btt 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 1mo 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.
Copies of this mod
1 near-identical copy found in the catalogue:
- btt — 94% identical, 60 lines differ
How it starts
The opening of the file, as written. The whole thing — 245 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Branching Tree Technique (BTT) Skill
Write bulloak tree specifications for smart contract tests.
Bundled References
| Reference | Content | When to Read |
|---|---|---|
./references/examples.md |
Complete tree and generated test examples | When learning BTT syntax |
./references/sablier-conventions.md |
Sablier-specific terminology and examples | When working in Sablier repos |
What is Bulloak?
Bulloak is a Solidity test generator that creates test scaffolds from .tree specification files. It offers a
structured approach to test case design that ensures comprehensive coverage of all possible scenarios and edge cases in
your smart contract tests.
Commands
To install Bulloak, if not found
cargo install bulloak
Generate test contract from a .tree file
bulloak scaffold -w --skip-modifiers --format-descriptions <path/to/file.tree>
where:
-wwrites the.t.solonly if it does not exist. Adding-f(-wf) overwrites an existing test and discards implemented bodies; to add tests for new branches, usebulloak check --fix --skip-modifiers --format-descriptions.--format-descriptionscapitalizes the first letter of the branch in the test contract and add a period at the end of it.--skip-modifiersskips the generation of modifiers. We do this because we put all the modifiers in a separateModifiers.solfile.
Check if the code in .t.sol file matches the specification in the .tree file
bulloak check --skip-modifiers <path/to/file.tree>
Important: Tree Files Should NOT Have Periods
Tree files should not have periods at the end of it branches. The --format-descriptions flag automatically:
- Capitalizes the first letter
- Adds a period at the end
# Correct (no period)
└── it should revert
# Wrong (has period)
└── it should revert.
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.
- 1mo ago Changed · +2 lines fdcdd1e1f394
- 2mo ago First seen · 243 lines · 53 tokens per session scan A bca64a02a4a9
btt is a skill published in the GitHub repository sablier-labs/agent-skills (9 stars, last pushed 1mo ago), licensed MIT. It adds 53 tokens to every session and 1,896 once invoked, about $0.0002 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 2026-08-31.
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