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.
git clone --depth 1 https://github.com/beardfaceguy/daimonosWrote 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/rules/beardfaceguy/daimonos/env-always-inherited)<a href="https://agentmods.dev/rules/beardfaceguy/daimonos/env-always-inherited"><img src="https://agentmods.dev/badge/rules/beardfaceguy/daimonos/env-always-inherited/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/rules/beardfaceguy/daimonos/env-always-inherited"><img src="https://agentmods.dev/badge/rules/beardfaceguy/daimonos/env-always-inherited.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 | $0.00000 | $0.00262 |
| Opus 5.5 | $0.00000 | $0.00105 |
| Sonnet 5.5 | $0.00000 | $0.00052 |
| Haiku 4.5 | $0.00000 | $0.00026 |
Grade A, and why
env-always-inherited 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.
What it actually says
Always Inherit Parent Environment
When building a session's environment map, always include the parent process PATH — even when no extra directories are appended.
What went wrong
build_initial_env() only inserted PATH into the env map when extra tool
directories were found. If no extras existed, PATH was absent entirely.
This caused downstream code that called .expect("PATH should be set") to
panic, and meant subprocesses wouldn't inherit PATH at all.
Rule
- Always start with the parent PATH as the baseline.
- Prepend extras if they exist.
- The result should always be set in the env map (unless PATH is genuinely empty, which is pathological).
// BAD: conditional PATH
if !extra.is_empty() {
env.insert("PATH".into(), new_path);
}
// GOOD: always inherit
let path_val = if !extra.is_empty() {
format!("{}:{}", extra.join(":"), parent_path)
} else {
parent_path
};
if !path_val.is_empty() {
env.insert("PATH".into(), path_val);
}
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 · 42 lines · 0 tokens per session scan A 9a5b66aa8420
env-always-inherited is a cursor rule published in the GitHub repository beardfaceguy/daimonos (3 stars, last pushed today), 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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