Limits and supported formats
These bounds describe supported behavior. They do not imply that every accepted source will produce a memory.
Memory tools
Section titled “Memory tools”| Input | Limit |
|---|---|
MCP remember.content |
100,000 trimmed characters |
recall.query |
2,000 characters |
ask.question |
4,000 characters |
Recall/Ask top_k |
1–50 |
| Recall tags | 50 unique values, up to 100 characters each |
See the tool reference for defaults and strict field names.
Documents
Section titled “Documents”| Item | Limit or supported formats |
|---|---|
| Original upload | 10 MiB |
| Extracted text | 100,000 characters |
| Text-based PDF | 100 pages |
| Text | UTF-8 .txt, .md, .markdown |
| Office | .docx, .pptx, .xlsx |
| Images | .jpg, .jpeg, .png, .webp |
Scanned/image-only PDFs, encrypted PDFs, and legacy Office formats are unsupported. Text documents have no fixed extracted-memory count; content and individual-memory bounds still apply. MCP cannot upload a file.
Email extraction is selective: zero to eight memories per message. Supported non-image attachments share the parent email’s processing and source links. Images, inline logos, and signatures are excluded.
Additional allowed senders are limited to 20 exact email addresses. Brain usernames are 3–40 ASCII letters, numbers, or hyphens and start/end with a letter or number. The chosen username is permanent; reserved names cannot be claimed.
| Admission or processing | Bound |
|---|---|
| Original email | 10 MiB |
| Extracted body and attachment text | 100,000 characters |
| New accepted messages | 50 per UTC day per brain |
| Pending email jobs | 10 per brain |
| Supported attachment attempts | 10 total, including nested messages |
| PDF pages across attachments | 100 total |
Check the received source’s status for processing failures. A skipped attachment does not imply that the original message was discarded.
Export
Section titled “Export”A synchronous export supports up to 5,000 memories, 5,000 entities, 10,000 relationships, and 20,000 memory/entity links. An oversized export fails explicitly instead of returning a partial snapshot. Import is not supported.
Availability
Section titled “Availability”Connection menus and eligibility depend on the AI provider and workspace. Hosted memory requires a connection. Local-only storage and universal connector support are not current product promises.