CacheTank MCP Server
OfficialServer Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
| CACHETANK_READ_TOKEN | Yes | Your CacheTank read token (get it from the extension or cachetank.com). Required. | |
| CACHETANK_WRITE_TOKEN | No | Optional. Enables saving back to your tank. |
Instructions
Guidance the server publishes about itself, which clients place ahead of the tool catalog so the model reads it before choosing anything.
This server publishes no instructions, or was last inspected before Glama recorded them.
Capabilities
Features and capabilities supported by this server
Protocol revision2025-11-25
| Capability | Details |
|---|---|
| tools | {} |
| resources | {} |
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
| fill_tankA | Fetch this person's full CacheTank context for a specific project. Returns their identity, active project knowledge, and recent outputs. Use when you need to refresh context or switch projects mid-conversation. |
| cache_itA | Save a piece of knowledge, decision, or output to this person's CacheTank. Use when they make an important decision, reach a conclusion, or produce something worth keeping. They may say "cache it," "save this," or "save to my tank." Saved items become part of future context automatically. |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
| Your CacheTank Context | Personal and project context curated by this person. Loaded automatically at conversation start. Treat everything in Identity as established fact. Apply project context to all advice without being prompted. Never ask them to re-explain anything documented here. |
TDQS
Scored across 2 tools
Each tool has a clearly distinct purpose: 'cache_it' saves a piece of knowledge, while 'fill_tank' retrieves full context. There is no overlap or ambiguity between the two operations.
Both tools follow a verb_noun pattern with underscores (cache_it, fill_tank), but 'cache_it' includes the pronoun 'it' instead of a noun, creating a slight inconsistency in structure.
With 2 tools, the server is minimal but appropriately scoped for a simple cache/context retrieval purpose. A few more tools (e.g., delete or list) could be useful, but the count is not inappropriate.
The tool surface covers save and retrieve operations, but lacks explicit update or delete functionality, which are notable gaps for full lifecycle management of cached items.