What is fulcra-context-mcp AGENTS.md?

A repository instruction file for Context by Fulcra, a platform that collects personal data such as wearable, calendar, location, and health-device data. It explains how people and software agents can access that data.

Building or using agents that query personal data, inspect available data types, work with tags, and access user-defined records.

It gives agents the background and access guidance needed to work with a person’s collected data through the platform’s apps, API, client library, or command-line tool.

How fulcradynamics/fulcra-context-mcp configures Codex and OpenCode

Reuse

Borrowing it

Nothing to install: this file belongs to fulcradynamics/fulcra-context-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/fulcradynamics/fulcra-context-mcp/main/AGENTS.md

Clone the repo

git clone --depth 1 https://github.com/fulcradynamics/fulcra-context-mcp

Made for: Codex, OpenCode.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/fulcradynamics/fulcra-context-mcp/agents-md/github.svg)](https://agentmods.dev/instructions/fulcradynamics/fulcra-context-mcp/agents-md)

Your own site

<a href="https://agentmods.dev/instructions/fulcradynamics/fulcra-context-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/fulcradynamics/fulcra-context-mcp/agents-md/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/fulcradynamics/fulcra-context-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/fulcradynamics/fulcra-context-mcp/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 4,713 This file is loaded in full into every session.

When invoked 4,713 The same file — it is already loaded in full.

Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.04713	$0.04713
Opus 5.5	$0.01885	$0.01885
Sonnet 5.5	$0.00943	$0.00943
Haiku 4.5	$0.00471	$0.00471

Measured 9d ago against content hash 4d9907bcae50, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

fulcra-context-mcp AGENTS.md scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl --oauth2-bearer "$(fulcra auth print-access-token)" 'https://api.fulcradynamics.com/user/v1alpha1/info'

AGENTS.md · 248 lines

How it starts

The opening of the file, as written. The whole thing — 248 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md - Fulcra

Fulcra - bridging the gap between agents, other agents, and humans. A context lake for all your data.

About

Fulcra is a personal data platform that gives humans and their agents a place to collect, store, and share real-world personal data - calendars, location, files, records that people and agents write, and data from phones, wearables, and other connected devices. Hundreds of data sources and types are supported. Users and agents can also record new data of their own - events, measurements, notes, and progress toward a goal - and define their own data types for it.

Data is primarily collected through the human's phone; the human installs Context by Fulcra and lets the app sync their data to their account.

Interactive Access to the User's Data

The human user gets to investigate their data interactively using beautiful mobile and web apps.

Agentic/Programmatic Access To the User's Data

Main Developer Docs
OpenAPI spec
Python client library and CLI (pip install fulcra-api): For an easy way to use the client library. Handles authentication for you. It also includes the fulcra CLI, which gives command-line access to the full platform — data queries, the data type catalog, tags, user-defined data types, and file storage. Sub-commands emit JSON lines for piping into tools like jq; run fulcra --help for the command list.
MCP server: The endpoint to the public MCP server. The server uses Streamable HTTP transport with OAuth2 authorization. Context users can use this server with their own account to securely access their data.
MCP server source code: The open-source repository for the MCP server. Useful for inspecting available tools, running locally, or contributing.

Read the full file on GitHub · 248 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

9d ago Changed · +1 lines · +63 tokens per session 4d9907bcae50
16d ago Changed · +14 lines · +288 tokens per session b6f9506d1a1b
20d ago Changed · +3 lines · +88 tokens per session b689d06bc00b
26d ago Changed · +10 lines · +512 tokens per session 98cf15fcf64d
1mo ago Changed · +101 tokens per session d9ebfada27ab
1mo ago Changed · +1 lines · +14 tokens per session da78eadb8963
1mo ago Changed · +136 tokens per session 1cca79e75184
1mo ago Changed · -2 lines · -40 tokens per session af850116cf4b
1mo ago Changed · +3 lines · +382 tokens per session 14844ca61749
1mo ago First seen · 218 lines · 3,169 tokens per session scan A ca863af53c35

Subscribe to this mod's changes

fulcra-context-mcp AGENTS.md is an instructions file published in the GitHub repository fulcradynamics/fulcra-context-mcp (10 stars, last pushed 3d ago), licensed Apache-2.0. It adds 4,713 tokens to every session, about $0.0189 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

fulcra mcp

fulcra-context-mcp AGENTS.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
fulcra-context-mcp AGENTS.mdfulcradynamics/fulcra-context-mcp	Instructions file	10	3d ago	Apache-2.0	A	4,713	Codex, OpenCode
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	9,719	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	143k	yesterday	MIT	A	7,461	Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	5,516	GitHub Copilot
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	yesterday	MIT	A	4,680	Codex, OpenCode
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	3,093	GitHub Copilot
vscode ai-customization.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	1,907	GitHub Copilot

fulcra-context-mcp: Instructions file for Codex