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/andrzejchm/fdb/testing-fdbnpx skills add andrzejchm/fdb --skill testing-fdbgit clone --depth 1 https://github.com/andrzejchm/fdbWrote 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/andrzejchm/fdb/testing-fdb)<a href="https://agentmods.dev/skills/andrzejchm/fdb/testing-fdb"><img src="https://agentmods.dev/badge/skills/andrzejchm/fdb/testing-fdb.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 | $0.00054 | $0.01229 |
| Opus 5 | $0.00027 | $0.00615 |
| Sonnet 5 | $0.00011 | $0.00246 |
| Haiku 4.5 | $0.00005 | $0.00123 |
Grade A, and why
testing-fdb 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.
How it starts
The opening of the file, as written. The whole thing — 155 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Prerequisites
- Dart SDK >= 3.0.0
- Flutter SDK
- Task (
brew install go-task) - A running iOS Simulator or Android emulator
Test App
A minimal Flutter app lives in example/test_app/ and is used as the target for all integration tests.
Setup
task setup # dart pub get + flutter pub get in test app
Running Tests
Full smoke test
Runs all fdb commands end-to-end: launch, attach, status, reload, restart, logs, tree, screenshot, select, kill.
task smoke # auto-detect device
task smoke DEVICE=iPhone-16 # specific device
Individual command tests
The app must already be running (via task test:launch) before running individual tests:
task test:launch DEVICE=iPhone-16
task test:launch-verbose DEVICE=iPhone-16
task test:attach DEVICE=iPhone-16
task test:devices
task test:status
task test:status-after-interrupted-launch
task test:reload
task test:restart
task test:logs
task test:logs-tag
task test:syslog
task test:crash-report
task test:tree
task test:describe
task test:describe-textfield
task test:describe-grid
task test:describe-nested-gestures
task test:describe-router
task test:screenshot
task test:native-view-tap
task test:deeplink
task test:native-tap
task test:grant-permission
task test:simulator
task test:select
task test:tap
task test:double-tap
task test:longpress
task test:tap-at
task test:tap-disappearing-widget
task test:tap-ignore-pointer-wrapper
task test:tap-cupertino-button
task test:input
task test:scroll
task test:scroll-to
task test:mem
task test:mem-native
task test:gc
task test:heap-dump
task test:wait
task test:swipe
task test:swipe-path
task test:back
task test:clean
task test:ext
task test:shared-prefs
task test:app-died
task test:kill
task test:status-stopped
task test:session-dir
Static analysis
task analyze # dart analyze + dart format --set-exit-if-changed
Unit tests
task test:unit # dart test
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 · 155 lines · 54 tokens per session scan A 6df7202e10db
testing-fdb is a skill published in the GitHub repository andrzejchm/fdb (46 stars, last pushed 6d ago), licensed MIT. It adds 54 tokens to every session and 1,229 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 2026-08-30.
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