# adb_file_fsinfo

Report filesystem details for any path: filesystem type, mount point, mount options, capacity, usage, read-only status, permission support, symlink support, max file size, timestamp resolution, encryption status, and SELinux context. Essential for understanding what operations are possible before attempting them.

Agent View of the PolicyLayer registry record for `adb_file_fsinfo`. HTML page: https://policylayer.com/tools/io-github-fullread-deepadb/adb-file-fsinfo

## Facts

- Tool: `adb_file_fsinfo`
- Server: Deepadb (`deepadb`) — https://policylayer.com/tools/io-github-fullread-deepadb.md
- Install: `npx -y deepadb`
- Homepage: https://github.com/fullread/DeepADB
- Risk category: Read (Low risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Allowed

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "adb_file_fsinfo",
    "arguments": {}
  }
}
```

## Why adb_file_fsinfo is rated Low

This is a pure querying tool that gathers and reports filesystem information from an Android device via ADB. It performs no modifications, deletions, executions, or financial operations. It is read-only and informational in nature, making it the lowest-risk category.

From the tool's own definition: "Tool retrieves filesystem metadata and details ('Report filesystem details', 'mount point', 'capacity', 'usage', 'read-only status', 'permission support', 'symlink support', 'max file size', 'timestamp resolution', 'encryption status', 'SELinux context') with…"

## Use case

AI agents call adb_file_fsinfo to retrieve information from Deepadb without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

## Recommended policy (PolicyLayer)

Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Deepadb:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "adb_file_fsinfo": {}
  }
}
```

## Other tools on Deepadb (204)

- `adb_clear_data` — Destructive — https://policylayer.com/tools/io-github-fullread-deepadb/adb-clear-data.md
- `adb_file_move` — Destructive — https://policylayer.com/tools/io-github-fullread-deepadb/adb-file-move.md
- `adb_forward_remove` — Destructive — https://policylayer.com/tools/io-github-fullread-deepadb/adb-forward-remove.md
- `adb_logcat_clear` — Destructive — https://policylayer.com/tools/io-github-fullread-deepadb/adb-logcat-clear.md
- `adb_qemu_images` — Destructive — https://policylayer.com/tools/io-github-fullread-deepadb/adb-qemu-images.md
- `adb_result_drop` — Destructive — https://policylayer.com/tools/io-github-fullread-deepadb/adb-result-drop.md
- `adb_reverse_remove` — Destructive — https://policylayer.com/tools/io-github-fullread-deepadb/adb-reverse-remove.md
- `adb_rm` — Destructive — https://policylayer.com/tools/io-github-fullread-deepadb/adb-rm.md
- `adb_tunnel_close` — Destructive — https://policylayer.com/tools/io-github-fullread-deepadb/adb-tunnel-close.md
- `adb_uninstall` — Destructive — https://policylayer.com/tools/io-github-fullread-deepadb/adb-uninstall.md
- `adb_a11y_audit` — Execute — https://policylayer.com/tools/io-github-fullread-deepadb/adb-a11y-audit.md
- `adb_airplane_cycle` — Execute — https://policylayer.com/tools/io-github-fullread-deepadb/adb-airplane-cycle.md
- `adb_airplane_mode` — Execute — https://policylayer.com/tools/io-github-fullread-deepadb/adb-airplane-mode.md
- `adb_at_batch` — Execute — https://policylayer.com/tools/io-github-fullread-deepadb/adb-at-batch.md
- `adb_at_probe` — Execute — https://policylayer.com/tools/io-github-fullread-deepadb/adb-at-probe.md
- `adb_at_send` — Execute — https://policylayer.com/tools/io-github-fullread-deepadb/adb-at-send.md
- `adb_batch_actions` — Execute — https://policylayer.com/tools/io-github-fullread-deepadb/adb-batch-actions.md
- `adb_build_and_install` — Execute — https://policylayer.com/tools/io-github-fullread-deepadb/adb-build-and-install.md
- `adb_ci_run_tests` — Execute — https://policylayer.com/tools/io-github-fullread-deepadb/adb-ci-run-tests.md
- `adb_ci_wait_boot` — Execute — https://policylayer.com/tools/io-github-fullread-deepadb/adb-ci-wait-boot.md
- `adb_connect` — Execute — https://policylayer.com/tools/io-github-fullread-deepadb/adb-connect.md
- `adb_disconnect` — Execute — https://policylayer.com/tools/io-github-fullread-deepadb/adb-disconnect.md
- `adb_dumpsys` — Execute — https://policylayer.com/tools/io-github-fullread-deepadb/adb-dumpsys.md
- `adb_emulator_start` — Execute — https://policylayer.com/tools/io-github-fullread-deepadb/adb-emulator-start.md
- `adb_emulator_stop` — Execute — https://policylayer.com/tools/io-github-fullread-deepadb/adb-emulator-stop.md
- `adb_farm_run` — Execute — https://policylayer.com/tools/io-github-fullread-deepadb/adb-farm-run.md
- `adb_file_chmod` — Execute — https://policylayer.com/tools/io-github-fullread-deepadb/adb-file-chmod.md
- `adb_file_chown` — Execute — https://policylayer.com/tools/io-github-fullread-deepadb/adb-file-chown.md
- `adb_force_stop` — Execute — https://policylayer.com/tools/io-github-fullread-deepadb/adb-force-stop.md
- `adb_forward` — Execute — https://policylayer.com/tools/io-github-fullread-deepadb/adb-forward.md
- …and 174 more: https://policylayer.com/tools/io-github-fullread-deepadb.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=io-github-fullread-deepadb · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/io-github-fullread-deepadb