Knowledge System

Knowledge files tell explorbot facts about your app. Agents read them to make better decisions about authentication, special workflows, and app-specific behavior.

Adding Knowledge

Interactive Mode

npx explorbot learn

Opens a TUI form where you can:

• Enter a URL pattern
• See existing knowledge for that URL
• Add new knowledge

CLI Mode

npx explorbot learn "<url-pattern>" "<description>"

Examples:

# Login credentials
npx explorbot learn "/login" "Use credentials: [email protected] / secret123"

# General knowledge (applies to all pages)
npx explorbot learn "*" "This is a React SPA. Wait for loading spinners to disappear."

# Specific page behavior
npx explorbot learn "/checkout" "Credit card field requires format: XXXX-XXXX-XXXX-XXXX"

Inside TUI

While exploring, use the /learn command.

/learn                              # Opens interactive form
/learn Test user: [email protected]  # Adds to current page

API Testing

API testing shares the same knowledge/ directory. npx explorbot api know <endpoint> "<description>" adds endpoint-scoped notes, stored with an endpoint: frontmatter field instead of url:.

URL Patterns

Pattern	Matches
/login	Exact path /login
/admin/*	Any path starting with /admin/
*	All pages (general knowledge)
^/users/\d+	Regex: /users/ followed by digits
~dashboard~	Regex: “dashboard” anywhere in URL (tilde on both sides)

Knowledge File Format

Knowledge lives in ./knowledge/ as markdown files with frontmatter:

---
url: /login
title: Login Page
---

Test credentials:
- email: [email protected]
- password: secret123

Notes:
- Submit button disabled until email validates
- 3 failed attempts triggers captcha
- "Remember me" checkbox persists session for 30 days

Frontmatter Fields

Field	Purpose
url	URL pattern to match (optional, defaults to *)
title	Human-readable title (optional)
Custom fields	Any additional metadata for agents

Variables

Knowledge files support variable interpolation with ${namespace.key} syntax. Explorbot resolves variables when it loads the knowledge.

Environment Variables

Use ${env.VARNAME} to reference environment variables. This keeps secrets out of knowledge files.

---
url: /login
---

Login credentials:
- email: ${env.LOGIN}
- password: ${env.PASSWORD}

Missing environment variables become an empty string.

Config Variables

Use ${config.path} to reference values from explorbot.config.js with dot notation.

---
url: *
---

Base URL: ${config.playwright.url}
Browser: ${config.playwright.browser}

You can reference any scalar config value. Object values become an empty string.

Supported Namespaces

Namespace	Source	Example
env	process.env	${env.API_KEY}
config	explorbot.config.js	${config.playwright.url}

Expressions with an unknown namespace (such as ${other.value}) or no namespace (such as ${value}) are left as-is.

Page Automation

Knowledge files can run automation commands when explorbot navigates to a matching page. Use this for loading states, cookie banners, or page-specific setup.

Available Fields

Field	Type	Description
wait	number	Wait for specified seconds after page load
waitForElement	string	Wait for element to appear (CSS selector)
code	string	Execute CodeceptJS code after navigation
statePush	boolean	Use history.pushState instead of full navigation

Wait for Page Load

---
url: /dashboard
wait: 2
waitForElement: '.dashboard-loaded'
---

Dashboard requires data to load before interaction.

Execute Custom Code

---
url: /app/*
code: |
  I.waitForElement('.app-ready');
  I.click('.cookie-accept');
  I.wait(1);
---

App pages need cookie consent dismissed and loading complete.

CodeceptJS Effects

Knowledge code can use CodeceptJS effects for error handling and retries:

Effect	Purpose
tryTo(fn)	Execute without failing - returns true/false
retryTo(fn, maxTries, interval)	Retry on failure with polling
within(context, fn)	Execute within a specific element context

Example with effects:

---
url: /dashboard
code: |
  await tryTo(() => I.click('.cookie-dismiss'));
  await retryTo(() => {
    I.click('Reload Data');
    I.waitForElement('.data-loaded');
  }, 5, 500);
---

Dashboard may show cookie banner. Data loads asynchronously - retry reload if needed.

Note

Effects are async. Use await when you call them in knowledge code.

SPA Navigation

For single-page apps where a full reload breaks state:

---
url: /settings/*
statePush: true
---

Settings uses client-side routing. Use pushState to preserve app state.

Tip

Use knowledge automation for page-specific behavior. For agent-specific logic, such as code that runs only during testing, use Agent Hooks instead.

Execution Order

When explorbot navigates to a page, automation runs in this order:

1. Navigation (I.amOnPage() or history.pushState)
2. wait (if specified)
3. waitForElement (if specified)
4. code (if specified)

What to Document

Authentication

---
url: /login
---

Credentials: [email protected] / testpass123
OAuth: Use "Continue with Google" for SSO testing
2FA: Code is always 123456 in test environment

Form Behavior

---
url: /checkout
---

Required fields: name, email, card number, expiry, CVV
Card format: XXXX-XXXX-XXXX-XXXX
Test card: 4111-1111-1111-1111, any future expiry, any CVV
Promo code "TEST10" gives 10% discount

Navigation Quirks

---
url: *
---

- App uses React Router, wait for route transitions
- Loading spinner class: .spinner-overlay
- Modals block interaction until dismissed
- Session expires after 15 minutes of inactivity

Test Data

---
url: /users
---

Test users available:
- [email protected] (admin role)
- [email protected] (standard user)
- [email protected] (view-only permissions)

How Agents Use Knowledge

When an agent works on a page, it gets the knowledge whose URL pattern matches:

1. Navigator — uses credentials and knows about special interactions
2. Researcher — reads page structure and hidden elements
3. Planner — adds edge cases and validation rules to test scenarios
4. Tester — uses test data and expected behaviors

Best Practices

1. Start with auth — add login credentials before exploring protected areas
2. Use * for globals — document app-wide behavior such as loading states and timeouts
3. Be specific — give exact selectors, formats, and values when you know them
4. Update as you learn — add knowledge when agents struggle with an interaction

File Organization

./knowledge/
├── login.md           # /login page
├── checkout.md        # /checkout page
├── general.md         # * (all pages)
└── admin_users.md     # /admin/users/*

Files are named after the URL pattern. Multiple entries for the same URL append to the same file.

See Also

• Agent Hooks — per-agent custom code execution
• Configuration — full configuration reference
• Page Interaction — how agents interact with pages