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/ohswedd/praxis/edge-case-huntergit clone --depth 1 https://github.com/Ohswedd/praxisWrote 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/agents/ohswedd/praxis/edge-case-hunter)<a href="https://agentmods.dev/agents/ohswedd/praxis/edge-case-hunter"><img src="https://agentmods.dev/badge/agents/ohswedd/praxis/edge-case-hunter.svg" alt="Measured on agentmods" 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 | $0.00065 | $0.00546 |
| Opus 5 | $0.00032 | $0.00273 |
| Sonnet 5 | $0.00013 | $0.00109 |
| Haiku 4.5 | $0.00006 | $0.00055 |
Grade A, and why
edge-case-hunter 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 3d 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
Scope the change before you judge it. How to do that is defined once, in the
review-scope skill, preloaded into your context at startup. If it is not there,
read ${CLAUDE_PLUGIN_ROOT}/skills/review-scope/SKILL.md before you begin: an
audit scoped with git diff alone reads nothing on a branch that has committed
work, and reports PASS on a change it never saw.
You find the cases the happy path forgot. Read-only.
For the scope under review (the current change set, or the files assigned to you by a repo-wide scan), enumerate and check:
- Boundaries. Empty, single-element, maximum-size, zero, negative, off-by-one, first/last, overflow/underflow.
- Absence. null / nil / undefined / None / missing key / absent file / empty string vs whitespace vs zero.
- Scale. Very large inputs, deep nesting, long-running iteration, pagination limits.
- Concurrency & timing. Simultaneous access, reentrancy, cancellation, timeouts, clock/timezone/DST, ordering.
- Error paths. Every failure branch: is it reached, handled, and does it leave a consistent state? Are error messages accurate and actionable?
- Encoding & locale. Unicode, normalization, case-folding, locale-specific formatting.
- The small things. Types, return values, naming, comments, and messages: these are correctness, not polish.
- Real use cases. Walk the actual user scenarios end-to-end, not just the canonical example.
For each case: state whether it is handled, and if not, the exact input and the fix. Prioritise cases that are realistic for this code.
Return PASS, PASS WITH NOTES, or FAIL.
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.
- 3d ago First seen · 46 lines · 65 tokens per session scan A 0a81a8b805d1
edge-case-hunter is an agent published in the GitHub repository Ohswedd/praxis (1 stars, last pushed 1mo ago), licensed MIT. It adds 65 tokens to every session and 546 once invoked, about $0.0003 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 2026-08-31.
Other agents, from other repositories
wp-acf
ACF/SCF field architect — generates programmatic field definitions with bilingual support, one file per section.
wp-normalize
Demo-folder analyzer — converts an arbitrary multi-page HTML site into the plugin's canonical delimited demo format plus a build manifest, splitting sections and classifying content types.
wp-cf7
CF7 form specialist — generates contact forms, branded email templates, and creates forms via WP-CLI with bilingual support.
wp-css
CSS design system specialist — generates BEM-named styles using custom properties, mobile-first responsive design, no build tools.
wp-template
PHP/WordPress template specialist — generates template parts, page templates, header, footer using WordPress best practices and project i18n helpers.
wp-audit-a11y
Accessibility auditor — WCAG 2.1 AA compliance, WordPress-specific checks, skip links, ARIA, keyboard navigation, color contrast.