claude-code-ultimate-guide/cowork/reference/glossary.md
Florian BRUNIAUX c2de35caba docs: complete Cowork documentation v1.0 (Phase 2)
- Create comprehensive Cowork docs (23 files in cowork/)
  - 6 guides: overview, getting started, capabilities, security, troubleshooting
  - 60+ ready-to-use prompts across 4 categories
  - 5 step-by-step workflows
  - Reference materials: cheatsheet, FAQ, comparison, glossary

- Integrate Perplexity research (P0/P1/P2)
  - Exact error messages with solutions (VPN, Chrome host, context limits)
  - Competitive analysis (vs Copilot/Gemini/ChatGPT/Apple Intelligence)
  - Enterprise validation (TELUS, Rakuten, Zapier stats)
  - OCR accuracy benchmarks (97% field, 63% line-item)
  - Token budget planning per task type

- Document critical limitations
  - VPN incompatibility (#1 community issue)
  - Context limit reality (165K vs 200K theoretical)
  - Platform constraints (macOS only)
  - Usage limits and pricing (Pro $20, Max $100-200)

- Update central files
  - README.md: detailed Cowork section with tables
  - VERSION: 3.9.6 → 3.9.7
  - machine-readable/reference.yaml: add cowork_reference entry
  - machine-readable/cowork-reference.yaml: new LLM-optimized index (~1.5K tokens)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
2026-01-20 11:23:43 +01:00

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4.4 KiB
Markdown

# Cowork Glossary
> **Terminology specific to Claude Cowork and related concepts**
---
## A
### Agentic
Describes AI systems that can autonomously plan and execute multi-step tasks with minimal human intervention. Cowork is "agentic" because it analyzes your request, creates a plan, and executes it (with your approval).
### Approval Gate
The checkpoint where Cowork shows its planned actions and waits for your confirmation before executing. **Critical security measure**—always review before approving.
---
## C
### Claude Code
Anthropic's CLI tool for developers. Shares architecture with Cowork but provides full shell access and code execution. Terminal-based interface.
### Claude Desktop
The macOS application that hosts Cowork. Different from the web interface (claude.ai).
### Context Limit
The maximum amount of text/data Claude can process in a single session (~200K tokens). When exceeded, tasks may fail or produce incomplete results.
### Context Window
The "memory" space where Claude holds your conversation and file contents during a session. Measured in tokens.
### Cowork
Claude's agentic desktop feature for knowledge workers. Manipulates files without code execution.
---
## E
### Execution Plan
The detailed list of actions Cowork proposes before starting work. Shows what files will be affected and how. **Review this carefully.**
### Extended Thinking
Claude's ability to reason through complex problems step-by-step. Shared capability between Claude Code and Cowork.
---
## F
### Folder Sandbox
The restricted area where Cowork can operate. You grant access to specific folders; Cowork cannot access anything outside this boundary.
---
## K
### Knowledge Worker
Non-technical professionals who work primarily with information and documents (project managers, analysts, writers, consultants). Cowork's target audience.
---
## L
### Local-First
Design principle where data and processing stay on your computer rather than in the cloud. Cowork accesses local files only.
---
## M
### Max Tier
The highest Claude subscription level ($100-200/month, with 5x or 20x usage multipliers). Recommended for heavy Cowork usage.
### Pro Tier
The standard Claude subscription level ($20/month). Now includes Cowork access, but with tighter usage limits (~1-1.5 hours intensive use before quota resets).
### Multi-Step Task
An operation requiring multiple sequential actions. Example: "read files → analyze → create report → organize output." Cowork excels at these.
---
## O
### OCR (Optical Character Recognition)
Technology that extracts text from images. Cowork uses OCR to read receipts, screenshots, and scanned documents.
### Orchestrator
The main Cowork agent that receives your request, creates the plan, coordinates sub-agents, and assembles results.
---
## P
### Prompt Injection
A security attack where malicious instructions are hidden in files, attempting to manipulate AI behavior. Mitigation: only process trusted files.
### Projects
Claude's conversation interface on claude.ai. Allows document uploads but no local file access or creation.
---
## R
### Research Preview
Anthropic's term for early-access features that aren't production-ready. Cowork is in research preview (January 2026). Expect bugs.
---
## S
### Sub-Agent
Specialized workers spawned by the orchestrator to handle specific parts of a task. Each sub-agent has fresh context and can work in parallel with others.
### Sandbox
See [Folder Sandbox](#folder-sandbox).
---
## T
### Token
The unit Claude uses to measure text. Roughly 4 characters or 0.75 words. Used to calculate context limits.
---
## W
### Workspace
The dedicated folder structure for Cowork operations. Best practice: `~/Cowork-Workspace/` with `input/` and `output/` subfolders.
---
## Common Acronyms
| Acronym | Meaning |
|---------|---------|
| CLI | Command Line Interface |
| OCR | Optical Character Recognition |
| PDF | Portable Document Format |
| API | Application Programming Interface |
| SSO | Single Sign-On |
---
## Related Terms from Claude Code
| Term | In Code Context | In Cowork Context |
|------|-----------------|-------------------|
| **CLAUDE.md** | Project context file | Can use for shared team context |
| **Sub-agents** | Task-specific workers | Same concept, file-focused |
| **Hooks** | Event handlers | Not available in Cowork |
| **MCP** | Model Context Protocol | Not exposed in Cowork |
---
*[Back to Cowork Documentation](../README.md)*