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 PostHog/posthog-foss --skill survey-sdk-auditgit clone --depth 1 https://github.com/PostHog/posthog-fossWrote 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/posthog/posthog-foss/survey-sdk-audit)<a href="https://agentmods.dev/skills/posthog/posthog-foss/survey-sdk-audit"><img src="https://agentmods.dev/badge/skills/posthog/posthog-foss/survey-sdk-audit/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/posthog/posthog-foss/survey-sdk-audit"><img src="https://agentmods.dev/badge/skills/posthog/posthog-foss/survey-sdk-audit.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 | $0.00030 | $0.04182 |
| Opus 5 | $0.00015 | $0.02091 |
| Sonnet 5 | $0.00006 | $0.00836 |
| Haiku 4.5 | $0.00003 | $0.00418 |
Grade A, and why
survey-sdk-audit 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 today.
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:
- survey-sdk-audit — 91% identical, 65 lines differ
How it starts
The opening of the file, as written. The whole thing — 353 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Surveys SDK Feature Audit Skill
Use this skill when auditing survey feature support across PostHog SDKs for surveyVersionRequirements.ts.
Feature to audit: $ARGUMENTS
For survey feature work, read Contributing survey changes.
For customer diagnosis without a repository checkout, use the published debugging-surveys skill.
Setup Check (Run First)
Before starting, verify the SDK paths are accessible. Run ls on each path:
$POSTHOG_JS_PATH$POSTHOG_IOS_PATH$POSTHOG_ANDROID_PATH$POSTHOG_FLUTTER_PATH
If any path is empty or doesn't exist, ask the user: "I need the path to [SDK repo] on your machine. Where is it located?"
Once you have all paths, ask the user if they'd like to save them for future sessions by adding to .claude/settings.local.json:
{
"env": {
"POSTHOG_JS_PATH": "/path/to/posthog-js",
"POSTHOG_IOS_PATH": "/path/to/posthog-ios",
"POSTHOG_ANDROID_PATH": "/path/to/posthog-android",
"POSTHOG_FLUTTER_PATH": "/path/to/posthog-flutter"
},
"permissions": {
"allow": [
"Read(/path/to/posthog-js/**)",
"Read(/path/to/posthog-ios/**)",
"Read(/path/to/posthog-android/**)",
"Read(/path/to/posthog-flutter/**)",
"Grep(/path/to/posthog-js/**)",
"Grep(/path/to/posthog-ios/**)",
"Grep(/path/to/posthog-android/**)",
"Grep(/path/to/posthog-flutter/**)"
]
}
}
Note: The Read and Grep permissions grant Claude access to these external SDK repositories without prompting each time.
Using SDK Paths in Commands
IMPORTANT: Environment variables like $POSTHOG_JS_PATH do NOT expand reliably in Bash tool commands.
Instead of bash commands, prefer:
- Use the Read tool to read files (works with permissions)
- Use the Grep tool to search files (works with permissions)
If you must use bash, first expand the variable:
echo $POSTHOG_JS_PATH
Then use the echoed path directly in subsequent commands.
What ships with it
3 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.
- today Changed · +3 lines · +15 tokens per session 10e82fecff6c
- 9d ago First seen · 350 lines · 15 tokens per session scan A 634042ac95bf
survey-sdk-audit is a skill published in the GitHub repository PostHog/posthog-foss (715 stars, last pushed today), licensed MIT. It adds 30 tokens to every session and 4,182 once invoked, about $0.0002 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 2026-09-03.
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