MCP.Market

sayou MCP server

by pixell-global·io.github.pixell-global/sayou·v0.2.2·28 stars
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Persistent knowledge workspace for AI agents. Versioned files, search, and MCP tools.

B75/100grade B
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Safety scan
B75/100

full report

Adoption
Growing

28 stars26 downloads/wk

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If you have run it, two minutes of your experience saves the next person an afternoon.

sayou tools (12, 2 write)

write = sends, deletes, buys or posts

Read from the package source without running it. The installed server may list more.

  • workspace_chunks

    Get chunk outline for a file: headings, line ranges, token estimates. Pass chunk_index to read a specific chunk's content.

  • workspace_deletewrite action

    Delete a file from the workspace (soft-delete). The file's version history is preserved.

  • workspace_glob

    Find files matching a glob pattern. Supports: ** (any path depth), * (any name), ? (single char). Examples: **/*.md, research/**, clients/*/profile.md

  • workspace_grep

    Search file contents for a text query. Returns matching lines with surrounding context. Optionally filter by glob path_pattern (e.g., **/*.md). Like grep but for workspace files.

  • workspace_history

    Get version history for a file. Returns all versions with timestamps, sizes, and content hashes. Pass version_a and version_b to compare two versions — returns a unified diff showing additions (+) and removals (-).

  • workspace_kv

    Key-value store for configuration, caches, and temporary data. Actions: get (retrieve by key), set (store value with optional TTL), list (browse keys by prefix), delete (remove key). Values are stored as JSON strings.

  • workspace_links

    Get outgoing and incoming links for a file. To add a link, pass add_target with the target file path. Link types: reference, parent, depends_on, related, supersedes.

  • workspace_list

    List files and subfolders in a workspace folder. Returns an auto-generated index table with frontmatter columns.

  • workspace_read

    Read a file from the workspace. Returns the latest version content with frontmatter metadata. Use token_budget to control output size. Optionally specify a version number to read a specific historical version. Use line_start/line_end to read a specific line range (1-indexed, inclusive) — useful after reading a summarized file to drill into specific sections.

  • workspace_search

    Search files by frontmatter metadata filters and/or full-text query. Filters match exact frontmatter values. Query searches file paths and frontmatter text. Set chunk_level=true for section-level precision instead of whole-file matches.

  • workspace_semantic_search

    Search files by meaning using vector embeddings. Returns the most similar files ranked by relevance. Best for finding conceptually related content when you don't know exact keywords.

  • workspace_writewrite action

    Write a file to the workspace. Creates the file if it doesn't exist, or creates a new version if it does. Content can include YAML frontmatter for structured metadata. For binary files, pass base64-encoded content and set content_type (e.g., image/png).

Public scan report

scanner v0.1.10 · 2026-09-28 · same rubric, same numbers if you re-run it

1 medium
  • Code scan77 source files scanned20/25
  • –Live reliabilityno gateway calls yet and no remote to proben/a
  • –Tool poisoningtools not inspected (local package is not executed); not countedn/a
  • Auth qualitylocal package, no credentials required12/15
  • Maintenancelast push 146 days ago8/15
  • Maintainer identityregistry namespace matches repository owner; GitHub account older than a year9/10

Findings (1)

  • mediumsubprocess with shell=Trueexec.shell-true
    sayou-0.2.2/agent/sandbox/manager.py: …esult = subprocess.run({repr(command)}, shell=True, capture_output=True, text=True, timeou…
Overall 75/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How sayou compares

Against every graded Web search MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
75/100
higher than 45% of 3,470 Web search servers
Tools
12
the typical Web search server has 5
Tools that change things
17%
typical: 0%. Fewer write tools means less an agent can break
GitHub stars
28
more than 90% of 1,786 Web search servers
Downloads a week
26
more than 12% of 827 Web search servers with a package

What its tools let an agent do: 10 read · 2 change

Install sayou in Claude Code, Cursor or VS Code

claude mcp add sayou -- uvx sayou
Add to Cursor

What the publisher says

From the sayou repository's README, as published. We do not edit it. Read it on GitHub

sayou

A file-system inspired context store for AI agents.

Built to replace the databases of the web era. Open source. File-first. SQL-compatible.

Databases were designed for transactions — they reduce nuance to fit a schema. Agents think deeply, then forget everything when the session ends. sayou is where reasoning persists, context accumulates, and knowledge compounds over time.

  • Files that hold what databases can't — Frontmatter for structure. Markdown for context. Versioned. Auditable.
  • One read. Full context. — Every read accepts a token_budget. Returns summaries with section pointers when content exceeds the budget.
  • Knowledge that compounds — Append-only version history. Every change is a new version. Full audit trail and time-travel reads.
  • Any agent can connect — MCP server, Python library, or CLI. Optional REST API with pip install sayou[api].

Quick Start

Claude Code (recommended)

From within Claude Code:

/plugin install sayou@pixell-global

Or from the terminal:

claude plugin install sayou@pixell-global

One command. This installs the plugin with lifecycle hooks (workspace context on session start, passive activity capture, session summaries) and skills (/ws, /save, /recall). If sayou isn't installed yet, the plugin auto-installs it on first run.

Cloud mode: To sync your workspace via Sayou Drive, run sayou auth after installing and paste your API key from Settings.

pip install

pip install sayou && sayou init --claude

This installs sayou and configures ~/.claude/mcp.json. You get the 11 MCP tools but no hooks or skills. You can also use --cursor or --windsurf, or run sayou init without flags to get the config snippet to paste manually.

To verify either method, run sayou status — you should see your workspace path, database location, and 11 tools registered. If you see errors, jump to Troubleshooting.

Try It

Open Claude Code and paste any of these prompts. Each one triggers a different MCP tool — no setup beyond the Quick Start above.

Every write creates a new version. Nothing is overwritten. You can always go back.

What It Looks Like

A short conversation showing sayou in action across sessions:

You: Research competitor pricing for our enterprise tier and save your findings.

Claude Code: I'll research this and save my findings to the workspace.

[Uses workspacewrite to create research/competitor-pricing.md]*

Saved to research/competitor-pricing.md with frontmatter:

status: draft, topic: competitor-pricing

You (next day, new session): What did we learn about competitor pricing?

Claude Code: Let me check our workspace.

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

sayou: common questions

Is sayou MCP server safe?
Mostly: it is graded B (75/100). Read the sayou safety report
How do I install sayou?
It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.
Does sayou need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is sayou maintained?
The last commit was 183 days ago (2026-05-05). The latest release is v0.2.2.
What can I use instead of sayou?
Servers from other publishers that do the same job: Octobrain MCP server, Repomix MCP server and DocsMint MCP server.
How does sayou compare with other Web search MCP servers?
safety score 75/100 (higher than 45% of 3,470 Web search servers); tools 12 (the typical Web search server has 5); tools that change things 17% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.

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