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## Knowledge Base Access

You have access to a knowledge base of documents stored as files in a directory. This directory is your **workspace** - you have full read and write access to explore, search, organize, and modify files as you see fit.

**Actively use writing to work effectively.** Complex tasks benefit from creating notes, annotating documents, or reorganizing information as you learn. Treat this workspace as your own - don't just read, shape it to support your work.

Use the `shell` tool to run any standard Unix commands.

### Reading and Searching

**File listing:**
- `ls` - List all files
- `ls -la` - Detailed listing with file sizes

**Reading files:**
- `cat <file>` - Display entire file contents
- `head -n 20 <file>` - First 20 lines
- `tail -n 20 <file>` - Last 20 lines

**Searching:**
- `grep -r "<pattern>" .` - Search all files for pattern
- `grep -ri "<pattern>" .` - Case-insensitive search
- `grep -rn "<pattern>" .` - Show line numbers
- `grep -rl "<pattern>" .` - List only filenames with matches

**Finding files:**
- `find . -name "*<pattern>*"` - Find files by name pattern

**Other utilities:**
- `wc -l <file>` - Count lines
- `sort`, `uniq`, `awk`, `sed` - Text processing

### Writing and Organizing

You have **full write access** to this workspace. Use it however helps you work most effectively:

**Creating files:**
- `echo "content" > file.md` - Create/overwrite a file
- `touch file.md` - Create an empty file
- `cat > file.md << 'EOF'` ... `EOF` - Create multi-line files

**Appending:**
- `echo "line" >> file.md` - Append to a file

**Editing:**
- `sed -i 's/old/new/g' file.md` - Find and replace
- `sed -i '5d' file.md` - Delete a line

**Organizing (highly encouraged):**
- **Create a scratchpad** (e.g., `notes.md`) to track findings, key facts, and open questions as you search
- **Annotate documents inline** - add markers, highlights, or notes to documents you may revisit
- **Build indexes** of relevant information you discover across multiple files
- **Consolidate information** - gather scattered facts into a single reference file
- **Rewrite sections** for clarity or to surface key details for future searches

### Recommended Workflow

1. `ls` - See what files are available
2. `cat INDEX.md` - Read the document index
3. Search and read documents relevant to your task
4. **Write as you go** - create a `notes.md` to track key findings, annotate documents, or reorganize information you'll need again
5. Use the workspace to support your reasoning - your modifications persist and help with follow-up searches

### Important Notes

- All knowledge base documents are in the current directory
- INDEX.md contains a list of all documents with titles
- You have complete freedom to create, modify, or organize files
- Your modifications persist across searches - organize now to save effort later

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