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 agentmods add agents/jtche/houdini-mcp/codegit clone --depth 1 https://github.com/JTCHE/houdini-mcpWhat 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 | $0.00000 | $0.00262 |
| Opus 5 | $0.00000 | $0.00131 |
| Sonnet 5 | $0.00000 | $0.00052 |
| Haiku 4.5 | $0.00000 | $0.00026 |
Grade A, and why
code 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 yesterday.
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.
What it actually says
Code
One source of truth
Each value, shape, and rule lives in one place. Ports, paths, defaults, and patterns get one definition that every caller imports. A value written twice will drift.
If you find the same value in two files, that is a bug. Fix the duplication before you fix the symptom.
Small modules
Split by purpose, not by size. A module does one thing and says so in its name. Shared logic goes in a module both callers import — never copied, never re-implemented.
Orchestration goes in the entry points. One-purpose logic goes in focused modules that the entry points call.
Change discipline
- Fix the cause, not the symptom. Before you edit a function, find every caller. One guard in the shared function beats a guard in each caller.
- Choose the simplest code that meets the current requirement. Do not add configuration, indirection, or abstraction for a need that does not exist yet.
- Delete more than you add when you can.
- Use names that explain themselves.
positionX, notpX. - Write a comment only when the code cannot show the reason. Keep it to one or two lines, next to the code it explains.
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.
- yesterday First seen · 31 lines · 0 tokens per session scan A b17eff0cf166
code is an agent published in the GitHub repository JTCHE/houdini-mcp (1 stars, last pushed 25d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 262 tokens. 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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