# Frontmatter fields
Every supported field across every tool, in one table.
| `applyTo` | Copilot | string \| array | Scope glob |
| `globs` | Cursor | array | Scope glob |
| `alwaysApply` | Cursor | bool | Force "everywhere" scope |
| `name` | All (agents, skills, modes) | string | Duplicate-name detection |
| `description` | All | string | Human label (shown in TUI/card) |
| `tools` | Copilot, Claude (agents) | array | Agent tool allowlist |
| `model` | Copilot, Claude (agents) | string | Optional model hint (informational) |
## Parsing rules
- aiscope uses [`serde_yaml`](https://docs.rs/serde_yaml) under the hood.
- Unknown fields are **ignored**, not errored — forward-compatible with
whatever Copilot/Cursor/Claude add next.
- Missing fields fall back to defaults (no scope = everywhere).
- Both `---` and `+++` (TOML) delimiters are recognized.
## Glob syntax
aiscope uses [`globset`](https://docs.rs/globset) — same syntax as `git`:
| `*.py` | any `.py` in the current dir |
| `**/*.py` | any `.py` at any depth |
| `apps/web/**` | everything under `apps/web/` |
| `!**/test_*.py` | exclusions are not yet supported |
## Examples
```yaml
---
applyTo: "**/*.py" # Copilot
---
```
```yaml
---
globs: # Cursor
- "**/*.ts"
- "**/*.tsx"
alwaysApply: false
---
```
```yaml
---
name: reviewer # Claude / Copilot agent
description: "Reviews PRs"
tools: [read, search]
model: sonnet-4
---
```