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/danielmiessler/lifeos/interceptornpx skills add danielmiessler/LifeOS --skill interceptorgit clone --depth 1 https://github.com/danielmiessler/LifeOSWhat 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 | $0.00193 | $0.18781 |
| Opus 5 | $0.00097 | $0.09390 |
| Sonnet 5 | $0.00039 | $0.03756 |
| Haiku 4.5 | $0.00019 | $0.01878 |
Grade A, and why
Interceptor scanned grade A with 1 finding 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 2d 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl -s -X POST http://localhost:31337/notify \ How it starts
The opening of the file, as written. The whole thing — 543 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Customization
Before executing, check for user customizations at:
~/.claude/LIFEOS/USER/CUSTOMIZATIONS/SKILLS/Interceptor/
If this directory exists, load and apply any PREFERENCES.md, configurations, or resources found there. These override default behavior. If the directory does not exist, proceed with skill defaults.
MANDATORY: Voice Notification (REQUIRED BEFORE ANY ACTION)
You MUST send this notification BEFORE doing anything else when this skill is invoked.
-
Send voice notification:
curl -s -X POST http://localhost:31337/notify \ -H "Content-Type: application/json" \ -d '{"message": "Running the WORKFLOWNAME workflow in the Interceptor skill to ACTION"}' \ > /dev/null 2>&1 & -
Output text notification:
Running the **WorkflowName** workflow in the **Interceptor** skill to ACTION...
This is not optional. Execute this curl command immediately upon skill invocation.
Interceptor — Real-Browser Automation + macOS Computer Use
First rule, above everything else: if you catch yourself about to ask the operator to do something in a browser — open a URL, click, fill a form, log in, paste a value, approve an OAuth/consent page — that urge IS the trigger to use Interceptor. Drive it yourself. The only exception is a step that needs a secret you genuinely don't hold (an unknown password, a hardware 2FA tap); even then, drive the flow up to that exact point, then surface only the one human-only action. Narrating clickwork a human has to perform is the precise failure this skill exists to prevent.
What It Does
Interceptor drives the real Chrome/Brave browser from inside it, and drives native macOS apps when the bridge is installed. Six capability classes, each its own verb tree: visual capture, DOM read, JS eval, network capture, input, and record/replay. It stays logged into your real sessions, passes every major bot-detection check, and is the mandatory tool for visual deploy verification.
What ships with it
35 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.
- .gitignore 35 B
- Flows/README.md 232 B
- preferences.env.example 1.5 KB
- References/CommandReference.md 12 KB
- Tools/Capture.sh 15 KB runs code
- Tools/CleanupTabs.sh 5.7 KB runs code
- Tools/EnsureTestProfile.sh 4.2 KB runs code
- Tools/FrameScrub.ts 4.4 KB runs code
- Tools/HealBridge.sh 2.3 KB runs code
- Tools/LaunchTestProfile.sh 4.1 KB runs code
- Tools/Pin.sh 3.5 KB runs code
- Tools/PreflightIsolation.sh 16 KB runs code
- Tools/VerifyImageProbe.ts 1.7 KB runs code
- Tools/VerifyViewport.ts 14 KB runs code
- Tools/Zoom.ts 5.6 KB runs code
- Workflows/CaptureBackgroundedApp.md 2.7 KB
- Workflows/DispatchAppleEvent.md 3.4 KB
- Workflows/DriveBackgroundedApp.md 4.7 KB
- Workflows/DriveRichEditor.md 5.9 KB
- Workflows/LaunchTestProfile.md 9.5 KB
- Workflows/MultiPageCompare.md 4.4 KB
- Workflows/OverrideXhr.md 5.4 KB
- Workflows/ReadAndExtract.md 3.9 KB
- Workflows/ReadAxTree.md 3.3 KB
- Workflows/RecordAndReplayMacFlow.md 4.6 KB
- Workflows/RecordFlow.md 4.6 KB
- Workflows/ReplayFlow.md 4.4 KB
- Workflows/Reproduce.md 4.1 KB
- Workflows/ScreenshotForVlm.md 5.5 KB
- Workflows/ScrubFlow.md 3.3 KB
- Workflows/TestForm.md 6.1 KB
- Workflows/TrustedInputGate.md 5.2 KB
- Workflows/Update.md 18 KB
- Workflows/VerifyDeploy.md 8.9 KB
- Workflows/VmLifecycle.md 5.8 KB
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.
- 2d ago First seen · 543 lines · 193 tokens per session scan A 63a7cd758418
Interceptor is a skill published in the GitHub repository danielmiessler/LifeOS (18,798 stars, last pushed 18d ago), licensed MIT. It adds 193 tokens to every session and 18,781 once invoked, about $0.0010 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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