The Stack Index / Context
serves AI Layer
Context
The persistent account memory other surfaces read from.
What makes agents useful rather than merely fast.
Updated 1 Oct 2026, the date of the latest episode citing a tool in this layer. Cite as: GTM Vault, The Stack Index, “Context”, https://pro.gtmvault.co/stack/layer/context, updated 1 Oct 2026.
11tools placed
10operator verified
1author recommended
Clay MCP
Agent access to Clay tables. Elliot O'Connor, Frontier, SMYS 8
Mid-market
Databricks
Data platform the agent layer reads and writes. Angelo Quiambao, Intellistack, SMYS 7
Enterprise
Gmail
Inbox history over MCP, used to drop anyone already emailed. Alexander Shartsis, Skyp, SMYS 2
Self-serve
Grain
Meeting recordings queried for context. Alexander Shartsis, Skyp, SMYS 2
Mid-market
Granola
Meeting notes and follow-up tracking. Harsha Gaddipati, Slashy, GTM 30
Self-serve
Intercom
Support content as auto-documentation. Alexander Shartsis, Skyp, SMYS 2
Mid-market
NotebookLM
Analysis notebook. Michele Shepard, Emburse, GTM 31
Self-serve
Notion
Spec doc the PQL agent was built from, after team review. Michael Bartimer, Clarify, SMYS 9
Self-serve
Salesforce MCP
CRM over Model Context Protocol. Elliot O'Connor, Frontier, SMYS 8
Enterprise
Stripe
Customer list retrieval and dedupe over MCP. Alexander Shartsis, Skyp, SMYS 2
Mid-market
Limitlessauthor
Meeting recording and transcription. Rick Koleta, AI Stack
Self-serve
Common questions
- What is the Context layer?
- The persistent account memory other surfaces read from. It serves AI Layer in the eight-layer model of revenue architecture. What makes agents useful rather than merely fast.
- Which tools do operators run in the Context layer?
- 11 tools are placed in the Context layer, 10 of them named by an operator running them in a working system. The most-named are Clay MCP (1 operator), Databricks (1 operator), Gmail (1 operator), Grain (1 operator) and Granola (1 operator).
- How does a tool get placed in the Context layer?
- A tool is placed by the function it performed in a named operator's system, described on a Show Me Your Stack or GTM Vault Podcast episode, or by a GTM Vault essay recommendation. The two grades are shown separately and never blended. Placement is not for sale.
New operator stacks, as they are published
Every Show Me Your Stack episode adds operators and tools to this index. Subscribe to GTM Vault and get each one as it lands.