io.github.rlrghb/outlook
NPM · OLKCLI
Outlook & OneDrive MCP: personal & enterprise tools for mail, calendar, contacts, tasks, files
Available components
Last scanned (20 hours ago)
Scores higher than 97% of npm servers
Category Productivity and Notes
How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score → Why this is hard to score →
Supply Chain Security100
- No malware found by supply-chain analysis.Pass
- No known CVEs affecting this package version or its production dependencies.Pass
- No install/post-install scripts declared.Pass
- 0 of 6 dependencies flagged as unhealthy. View diagnostics → Pass
Provenance & Transparency100
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Cryptographically verified build provenance (signed, bound to rlrghb/olkcli). View diagnostics → Pass
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 23 days ago).Pass
- Publishes a security disclosure policy (SECURITY.md).Pass
Schema Quality & AI Usability67
- AI-judged instruction clarity (good).Pass
- Tool/resource definitions use about 2925 tokens (~73/item across 40 items; 40 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management100
- No destabilizing schema changes in the last 30 days.Pass
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 40 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 40 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 1 Nov 26 0
- Stability: 0.97 → pass security
- 31 Oct 26 0
- Stability: pass → 0.97 functional
- 22 Oct 26 0
- Stability: 0.97 → pass security
- 21 Oct 26 0
- Stability: pass → 0.97 functional
- 17 Oct 26 +3
- Stability: 0.80 → pass security
- 16 Oct 26 −3
- Stability: pass → 0.80 functional
- 15 Oct 26 0
- Stability: 0.97 → pass security
- 14 Oct 26 +44
- Injection markers: unverified → pass ▲ security
- Tool coverage: unverified → 100 ▲ functional
- MCP protocol: unverified → pass ▲ functional
- Stability: unverified → 0.97 ▲ functional
- Package version: 1.15.1 → 1.16.1 functional
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 4 Nov 2026 · Analysed npm/olkcli@1.16.1
Provenance Verified
A signed build attestation was found and verified, binding this exact artifact to the source repository it claims to come from.
| Result | Verified |
|---|---|
| Ecosystem | npm |
| Reason | Verified |
| Discovered via | Registry attestation endpoint |
| Source repo | rlrghb/olkcli |
| Certificate issuer | https://token.actions.githubusercontent.com |
| Certificate SAN | https://github.com/rlrghb/olkcli/.github/workflows/release.yml@refs/tags/v1.16.1 |
| Rekor log index | 3218851277 |
| Predicate type | SLSA build provenance https://slsa.dev/provenance/v1 |
| Subject digest | sha512:6eb2c1e984d49f50b4a602b599eff5d4d68159bac03903ab2e029a48f74d537fce43564cefc1d9749f59901d39c4a816a1fb0b4a0c1666f22f2a0c8f7 |
Background: How many MCP packages publish verified provenance →
Dependencies 6 packages
| Packages resolved | 6 |
|---|---|
| Tree resolution | Complete |
Background: SBOMs and build attestations, explained →
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
calendar_attachments_download ~72
Download an attachment
| Name | Type | Req | Description |
|---|---|---|---|
| attachment-id | string | yes | Attachment ID |
| concise | boolean | – | Drop large free-text fields (message/event/task bodies, previews, attendee lists) to reduce payload size. |
| event-id | string | yes | Event ID |
| out | string | – | Output directory for download |
No output schema declared.
No examples provided.
calendar_attachments_list ~51
List event attachments
| Name | Type | Req | Description |
|---|---|---|---|
| concise | boolean | – | Drop large free-text fields (message/event/task bodies, previews, attendee lists) to reduce payload size. |
| event-id | string | yes | Event ID |
No output schema declared.
No examples provided.
calendar_availability ~93
Check availability / free-busy
| Name | Type | Req | Description |
|---|---|---|---|
| after | string | – | Start date (ISO 8601) |
| before | string | – | End date (ISO 8601) |
| concise | boolean | – | Drop large free-text fields (message/event/task bodies, previews, attendee lists) to reduce payload size. |
| days | integer | – | Days to look ahead |
| emails | array | yes | Email addresses to check |
No output schema declared.
No examples provided.
calendar_calendars ~41
List available calendars
| Name | Type | Req | Description |
|---|---|---|---|
| concise | boolean | – | Drop large free-text fields (message/event/task bodies, previews, attendee lists) to reduce payload size. |
No output schema declared.
No examples provided.
calendar_delta ~129
Incremental sync of calendar events (delta)
| Name | Type | Req | Description |
|---|---|---|---|
| after | string | – | Window start (ISO 8601); overrides --days start |
| before | string | – | Window end (ISO 8601); overrides --days end |
| concise | boolean | – | Drop large free-text fields (message/event/task bodies, previews, attendee lists) to reduce payload size. |
| days | integer | – | Window size in days ahead for the initial sync |
| token | string | – | Delta token from a previous call (omit to start a fresh sync) |
| top | integer | – | Max items per page |
No output schema declared.
No examples provided.
calendar_events ~115
List calendar events
| Name | Type | Req | Description |
|---|---|---|---|
| after | string | – | Start date (ISO 8601) |
| before | string | – | End date (ISO 8601) |
| body-format | string | – | Request provider-returned event body representation |
| calendar | string | – | Calendar ID |
| concise | boolean | – | Drop large free-text fields (message/event/task bodies, previews, attendee lists) to reduce payload size. |
| days | integer | – | Number of days to look ahead |
| top | integer | – | Max events to return |
No output schema declared.
No examples provided.
calendar_find_times ~93
Find available meeting times
| Name | Type | Req | Description |
|---|---|---|---|
| after | string | – | Search after date (ISO 8601) |
| attendees | array | yes | Attendee email addresses |
| before | string | – | Search before date (ISO 8601) |
| concise | boolean | – | Drop large free-text fields (message/event/task bodies, previews, attendee lists) to reduce payload size. |
| duration | integer | – | Meeting duration in minutes |
No output schema declared.
No examples provided.
calendar_get ~63
Get event details
| Name | Type | Req | Description |
|---|---|---|---|
| body-format | string | – | Request provider-returned event body representation |
| concise | boolean | – | Drop large free-text fields (message/event/task bodies, previews, attendee lists) to reduce payload size. |
| id | string | yes | Event ID |
No output schema declared.
No examples provided.
calendar_view ~117
Calendar view with expanded recurring events
| Name | Type | Req | Description |
|---|---|---|---|
| after | string | – | Start date (ISO 8601) |
| before | string | – | End date (ISO 8601) |
| body-format | string | – | Request provider-returned event body representation |
| calendar | string | – | Calendar ID |
| concise | boolean | – | Drop large free-text fields (message/event/task bodies, previews, attendee lists) to reduce payload size. |
| days | integer | – | Number of days to show |
| top | integer | – | Max events to return |
No output schema declared.
No examples provided.
changes ~127
Unified delta digest across mail, calendar, and contacts
| Name | Type | Req | Description |
|---|---|---|---|
| calendar-token | string | – | Delta token for calendar (omit for a fresh sync) |
| concise | boolean | – | Drop large free-text fields (message/event/task bodies, previews, attendee lists) to reduce payload size. |
| contacts-token | string | – | Delta token for contacts (omit for a fresh sync) |
| days | integer | – | Calendar window in days ahead for the initial sync |
| mail-token | string | – | Delta token for mail (omit for a fresh sync) |
| top | integer | – | Max items per resource page |
No output schema declared.
No examples provided.
contacts_delta ~74
Incremental sync of contacts (delta)
| Name | Type | Req | Description |
|---|---|---|---|
| concise | boolean | – | Drop large free-text fields (message/event/task bodies, previews, attendee lists) to reduce payload size. |
| token | string | – | Delta token from a previous call (omit to start a fresh sync) |
| top | integer | – | Max items per page |
No output schema declared.
No examples provided.
contacts_get ~48
Get contact details
| Name | Type | Req | Description |
|---|---|---|---|
| concise | boolean | – | Drop large free-text fields (message/event/task bodies, previews, attendee lists) to reduce payload size. |
| id | string | yes | Contact ID |
No output schema declared.
No examples provided.
contacts_list ~74
List contacts
| Name | Type | Req | Description |
|---|---|---|---|
| concise | boolean | – | Drop large free-text fields (message/event/task bodies, previews, attendee lists) to reduce payload size. |
| skip | integer | – | Number of contacts to skip (offset pagination) |
| sort | string | – | Sort by field |
| top | integer | – | Max contacts to return |
No output schema declared.
No examples provided.
contacts_search ~56
Search contacts
| Name | Type | Req | Description |
|---|---|---|---|
| concise | boolean | – | Drop large free-text fields (message/event/task bodies, previews, attendee lists) to reduce payload size. |
| query | string | yes | Search query |
| top | integer | – | Max results |
No output schema declared.
No examples provided.
drive_get ~63
Get item details
| Name | Type | Req | Description |
|---|---|---|---|
| concise | boolean | – | Drop large free-text fields (message/event/task bodies, previews, attendee lists) to reduce payload size. |
| drive-id | string | – | Drive ID (default: primary drive) |
| id | string | yes | Item ID |
No output schema declared.
No examples provided.
drive_info ~56
Show drive details and quota
| Name | Type | Req | Description |
|---|---|---|---|
| concise | boolean | – | Drop large free-text fields (message/event/task bodies, previews, attendee lists) to reduce payload size. |
| drive-id | string | – | Drive ID (default: primary drive) |
No output schema declared.
No examples provided.
drive_ls ~79
List folder contents
| Name | Type | Req | Description |
|---|---|---|---|
| concise | boolean | – | Drop large free-text fields (message/event/task bodies, previews, attendee lists) to reduce payload size. |
| drive-id | string | – | Drive ID (default: primary drive) |
| path | string | – | Folder path (default: root) |
| top | integer | – | Number of items to return |
No output schema declared.
No examples provided.
drive_recent ~54
Recently accessed files
| Name | Type | Req | Description |
|---|---|---|---|
| concise | boolean | – | Drop large free-text fields (message/event/task bodies, previews, attendee lists) to reduce payload size. |
| drive-id | string | – | Drive ID (default: primary drive) |
No output schema declared.
No examples provided.
drive_search ~72
Search files
| Name | Type | Req | Description |
|---|---|---|---|
| concise | boolean | – | Drop large free-text fields (message/event/task bodies, previews, attendee lists) to reduce payload size. |
| drive-id | string | – | Drive ID (default: primary drive) |
| query | string | yes | Search query |
| top | integer | – | Number of results |
No output schema declared.
No examples provided.
drive_shared ~55
Files shared with me
| Name | Type | Req | Description |
|---|---|---|---|
| concise | boolean | – | Drop large free-text fields (message/event/task bodies, previews, attendee lists) to reduce payload size. |
| drive-id | string | – | Drive ID (default: primary drive) |
No output schema declared.
No examples provided.
drive_versions ~64
List file version history
| Name | Type | Req | Description |
|---|---|---|---|
| concise | boolean | – | Drop large free-text fields (message/event/task bodies, previews, attendee lists) to reduce payload size. |
| drive-id | string | – | Drive ID (default: primary drive) |
| id | string | yes | Item ID |
No output schema declared.
No examples provided.
mail_attachments ~84
List/download attachments
| Name | Type | Req | Description |
|---|---|---|---|
| attachment-id | string | – | Download a specific attachment by ID |
| concise | boolean | – | Drop large free-text fields (message/event/task bodies, previews, attendee lists) to reduce payload size. |
| id | string | yes | Message ID |
| out | string | – | Output directory for downloads |
| save | boolean | – | Download all attachments |
No output schema declared.
No examples provided.
mail_batch ~82
Fetch up to 20 messages by ID in one request ($batch)
| Name | Type | Req | Description |
|---|---|---|---|
| body-format | string | – | Request provider-returned message body representation |
| concise | boolean | – | Drop large free-text fields (message/event/task bodies, previews, attendee lists) to reduce payload size. |
| id | array | – | Message ID to fetch (repeatable, max 20) |
No output schema declared.
No examples provided.
mail_categories_list ~40
List available categories
| Name | Type | Req | Description |
|---|---|---|---|
| concise | boolean | – | Drop large free-text fields (message/event/task bodies, previews, attendee lists) to reduce payload size. |
No output schema declared.
No examples provided.
mail_delta ~100
Incremental sync of a mail folder (delta)
| Name | Type | Req | Description |
|---|---|---|---|
| concise | boolean | – | Drop large free-text fields (message/event/task bodies, previews, attendee lists) to reduce payload size. |
| folder | string | – | Mail folder ID, well-known name, or path (for example Inbox/2026) |
| token | string | – | Delta token from a previous call (omit to start a fresh sync) |
| top | integer | – | Max items per page |
No output schema declared.
No examples provided.
mail_folders_list ~71
List all visible mail folders recursively
| Name | Type | Req | Description |
|---|---|---|---|
| concise | boolean | – | Drop large free-text fields (message/event/task bodies, previews, attendee lists) to reduce payload size. |
| well-known | string | – | Resolve one guarded destination by canonical Graph name (archive, deleteditems, inbox, or junkemail) |
No output schema declared.
No examples provided.
mail_get ~99
Get a message
| Name | Type | Req | Description |
|---|---|---|---|
| concise | boolean | – | Drop large free-text fields (message/event/task bodies, previews, attendee lists) to reduce payload size. |
| format | string | – | Output format: full|text|html|eml (eml is the raw RFC 5322 message) |
| id | string | yes | Message ID |
| out | string | – | With --format eml, write the message to this file instead of stdout |
No output schema declared.
No examples provided.
mail_list ~172
List messages in inbox
| Name | Type | Req | Description |
|---|---|---|---|
| after | string | – | Filter messages after date (ISO 8601) |
| before | string | – | Filter messages before date (ISO 8601) |
| concise | boolean | – | Drop large free-text fields (message/event/task bodies, previews, attendee lists) to reduce payload size. |
| focused | boolean | – | Show only Focused Inbox messages |
| folder | string | – | Mail folder ID, well-known name, or path (for example Inbox/2026) |
| from | string | – | Filter by sender email |
| order | string | – | Message order: newest|oldest (default newest) |
| other | boolean | – | Show only Other Inbox messages |
| top | integer | – | Number of messages to return |
| unread | boolean | – | Show only unread messages |
No output schema declared.
No examples provided.
mail_ooo_get ~43
Get auto-reply settings
| Name | Type | Req | Description |
|---|---|---|---|
| concise | boolean | – | Drop large free-text fields (message/event/task bodies, previews, attendee lists) to reduce payload size. |
No output schema declared.
No examples provided.
mail_rules_list ~40
List inbox rules
| Name | Type | Req | Description |
|---|---|---|---|
| concise | boolean | – | Drop large free-text fields (message/event/task bodies, previews, attendee lists) to reduce payload size. |
No output schema declared.
No examples provided.
mail_search ~71
Search messages
| Name | Type | Req | Description |
|---|---|---|---|
| concise | boolean | – | Drop large free-text fields (message/event/task bodies, previews, attendee lists) to reduce payload size. |
| query | string | yes | Search query — supports KQL operators (from:, subject:, hasAttachment:, etc.) |
| top | integer | – | Number of results |
No output schema declared.
No examples provided.
mail_thread ~98
List all messages in a conversation thread
| Name | Type | Req | Description |
|---|---|---|---|
| body-format | string | – | Request provider-returned message body representation |
| complete | boolean | – | Consume every provider page before returning |
| concise | boolean | – | Drop large free-text fields (message/event/task bodies, previews, attendee lists) to reduce payload size. |
| conversation-id | string | yes | Conversation ID (a message's conversationId) |
| top | integer | – | Max messages to return |
No output schema declared.
No examples provided.
people_search ~59
Search people directory
| Name | Type | Req | Description |
|---|---|---|---|
| concise | boolean | – | Drop large free-text fields (message/event/task bodies, previews, attendee lists) to reduce payload size. |
| query | string | yes | Search query |
| top | integer | – | Max results to return |
No output schema declared.
No examples provided.
todo_checklist_list ~61
List checklist items
| Name | Type | Req | Description |
|---|---|---|---|
| concise | boolean | – | Drop large free-text fields (message/event/task bodies, previews, attendee lists) to reduce payload size. |
| list | string | – | Task list ID |
| task-id | string | yes | Task ID |
No output schema declared.
No examples provided.
todo_get ~58
Get task details
| Name | Type | Req | Description |
|---|---|---|---|
| concise | boolean | – | Drop large free-text fields (message/event/task bodies, previews, attendee lists) to reduce payload size. |
| id | string | yes | Task ID |
| list | string | – | Task list ID |
No output schema declared.
No examples provided.
todo_links_list ~60
List linked resources
| Name | Type | Req | Description |
|---|---|---|---|
| concise | boolean | – | Drop large free-text fields (message/event/task bodies, previews, attendee lists) to reduce payload size. |
| list | string | – | Task list ID |
| task-id | string | yes | Task ID |
No output schema declared.
No examples provided.
todo_list ~73
List tasks in a list
| Name | Type | Req | Description |
|---|---|---|---|
| concise | boolean | – | Drop large free-text fields (message/event/task bodies, previews, attendee lists) to reduce payload size. |
| list | string | – | Task list ID |
| status | string | – | Filter by status |
| top | integer | – | Number of tasks to return |
No output schema declared.
No examples provided.
todo_lists_list ~40
List task lists
| Name | Type | Req | Description |
|---|---|---|---|
| concise | boolean | – | Drop large free-text fields (message/event/task bodies, previews, attendee lists) to reduce payload size. |
No output schema declared.
No examples provided.
version ~38
Show version information
| Name | Type | Req | Description |
|---|---|---|---|
| concise | boolean | – | Drop large free-text fields (message/event/task bodies, previews, attendee lists) to reduce payload size. |
No output schema declared.
No examples provided.
whoami ~40
Show current user profile
| Name | Type | Req | Description |
|---|---|---|---|
| concise | boolean | – | Drop large free-text fields (message/event/task bodies, previews, attendee lists) to reduce payload size. |
No output schema declared.
No examples provided.
How do I install the io.github.rlrghb/outlook MCP server?
io.github.rlrghb/outlook runs locally as an npm package, launched with npx -y olkcli. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · olkcli
claude mcp add rlrghb-outlook -- npx -y olkcli
What is the io.github.rlrghb/outlook MCP server?
io.github.rlrghb/outlook is an MCP server listed in the public MCP registry as io.github.rlrghb/outlook. Outlook & OneDrive MCP: personal & enterprise tools for mail, calendar, contacts, tasks, files. This page covers its npm package (olkcli).
Is the io.github.rlrghb/outlook MCP server safe to use?
io.github.rlrghb/outlook scores 94 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 4 November 2026. It declares no install or post-install scripts. Its build provenance is signed and verified. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the io.github.rlrghb/outlook MCP server expose?
io.github.rlrghb/outlook exposes 40 tools: calendar_attachments_download, calendar_attachments_list, calendar_availability, calendar_calendars, calendar_delta, and 35 more. Their descriptions and schemas cost roughly 2,925 tokens of context every time the server is loaded.
Is the io.github.rlrghb/outlook MCP server still maintained?
io.github.rlrghb/outlook is still listed as active in the MCP registry. We last reached this channel on 4 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.
What licence is the io.github.rlrghb/outlook MCP server under?
io.github.rlrghb/outlook declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.