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 skills/treylom/thiscodex/testnpx skills add treylom/ThisCodex --skill testgit clone --depth 1 https://github.com/treylom/ThisCodexWrote 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/treylom/thiscodex/test)<a href="https://agentmods.dev/skills/treylom/thiscodex/test"><img src="https://agentmods.dev/badge/skills/treylom/thiscodex/test.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 | $0.00036 | $0.00354 |
| Opus 5 | $0.00018 | $0.00177 |
| Sonnet 5 | $0.00007 | $0.00071 |
| Haiku 4.5 | $0.00004 | $0.00035 |
Grade A, and why
test 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 4d 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
/test
Use this skill for /test requests in ThisCodex.
Run the repository harness from the repo root:
node scripts/feature-test.mjs [query]
Subcommands
Dispatch rules:
| When to use | Call |
|---|---|
| Run all lightweight smoke tests | /test — runs memory, tmux, meetings, rules, hooks, installer smoke tests (excludes GraphRAG benchmark). Each test prints PASS, FAIL, or SKIP. |
| Test a specific feature | /test <feature name> — fuzzy-matches one feature by name and runs that smoke test. Examples: /test memory, /test meetings, /test graphrag. |
| Include GraphRAG benchmark | /test graphrag-bench, /test --bench, or /test all — includes the heavyweight GraphRAG indexing benchmark (slower, full-scope). |
| View test output | Test harness prints one row per feature (PASS/FAIL/SKIP) plus a summary line. Missing optional dependencies show SKIP; broken shipped files or syntax errors show FAIL. Exit code 0 = all passed or skipped; non-zero = ≥1 failed. |
| Debug a failed test | Add --verbose flag for detailed logs: /test --verbose or /test memory --verbose for step-by-step output. |
The harness is idempotent — run it as many times as needed during development.
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.
- 4d ago First seen · 29 lines · 36 tokens per session scan A e6d42816b1e7
test is a skill published in the GitHub repository treylom/ThisCodex (17 stars, last pushed 18d ago), licensed MIT. It adds 36 tokens to every session and 354 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 2026-08-30.
Other skills, from other repositories
systematic-debugging
Use when encountering any bug, test failure, or unexpected behavior, before proposing fixes.
brainstorming
You MUST use this before any creative work - creating features, building components, adding functionality, or modifying behavior. Explores user intent, requirements and design before implementation.
auto-perf-optimize
Run agent-driven VS Code performance or memory investigations. Use when asked to launch Code OSS, automate a VS Code scenario, run the Chat memory smoke runner, capture renderer heap snapshots, take workflow screenshots, compare run summaries, or drive a repeatable scenario before heap-snapshot analysis.
chat-perf
Run chat perf benchmarks and memory leak checks against the local dev build or any published VS Code version. Use when investigating chat rendering regressions, validating perf-sensitive changes to chat UI, or checking for memory leaks in the chat response pipeline.
chat-pet-sprite-creation
Use when creating or changing VS Code chat pet sprite art, sprite sheets, state animations, eye treatments, Stable/Insiders variants, or pet transitions under src/vs/workbench/contrib/chat/browser/widget/media/chatPet.
cpu-profile-analysis
Analyze V8/Chrome CPU profiles (.cpuprofile) and DevTools trace files (Trace-.json). Use when: profiling performance, investigating slow functions, comparing code paths, finding bottlenecks, analyzing timeToRequest, understanding call trees from sampling profiler data, analyzing layout/paint/rendering, investigating…