How Buzz’s scores are calculated

The full audit trail, recomputed from the verdict data at build time through the same code that produced the leaderboard: verdict × quality × story weight per cell, cells sum to dimension scores, dimensions blend into the PA Score. Every number on the product page is reproducible from this page alone; for why the formula looks like this, see the methodology.

verdict factors: full ×1.0 · partial ×0.6 · disputed ×0.3 · none ×0.0 · n/a excluded from both sides · cell points = weight × quality × factor · cell max = weight × 10

PA Score26/100

Agent-ready 27.9 × 0.30 = 8.37

API quality 0.0 × 0.20 = 0.00

Openness 54.4 × 0.20 = 10.88

Built-in AI 30.7 × 0.15 = 4.60

Automation 15.0 × 0.15 = 2.25

(8.37 + 0.00 + 10.88 + 4.60 + 2.25) ÷ (0.30 + 0.20 + 0.20 + 0.15 + 0.15) = 26.11 ÷ 1.00 = 26.1

Scores are stored to 1 decimal; the product page’s pills round to whole numbers for display. Each dimension below shows the stories, verdicts, and cited evidence behind its number.

Agent-ready27.9/100×0.30 of the PA blend

Outside-in: can YOUR agent reach and drive this product — API, MCP, CLI, headless runs, agent docs.

Point an agent at llms.txt or agent-oriented docsweight 2

2 (weight) × 0 (quality) × 0.0 (none) = 0.0 of 20 max

[probe] https://buzz.xyz/llms.txt“PROBE llms.txt: HTTP 404 at https://buzz.xyz/llms.txt”

Run the product headlessly / in CI for automationweight 2

2 (weight) × 5 (quality) × 0.6 (partial) = 6.0 of 20 max

[claimed-docs] https://raw.githubusercontent.com/block/buzz/main/crates/buzz-cli/README.md“buzz channels create --name "my-channel" --type stream --visibility open”
[claimed-docs] https://raw.githubusercontent.com/block/buzz/main/crates/buzz-cli/README.md“buzz repos protect set --id my-repo --ref refs/heads/main --push admin --no-force-push --no-delete”
[claimed-docs] https://raw.githubusercontent.com/block/buzz/main/crates/buzz-cli/README.md“buzz workflows trigger --workflow buzz workflows approve --token”
[github] https://github.com/block/buzz“Agents have their own keys, their own channel memberships, and their own audit trail.”
[probe] https://github.com/block/buzz/tree/main/crates/buzz-cli“official CLI documented at https://github.com/block/buzz/tree/main/crates/buzz-cli”

Plug MCP servers into this product so it can use their toolsweight 3

3 (weight) × 3 (quality) × 0.6 (partial) = 5.4 of 30 max

[probe] https://raw.githubusercontent.com/block/buzz/main/docs/MCP_DRIVEN_HOOKS.md“official MCP server documented at https://raw.githubusercontent.com/block/buzz/main/docs/MCP_DRIVEN_HOOKS.md”

Connect an agent via an official MCP serverweight 3

3 (weight) × 6 (quality) × 0.6 (partial) = 10.8 of 30 max

[probe] https://raw.githubusercontent.com/block/buzz/main/docs/MCP_DRIVEN_HOOKS.md“official MCP server documented at https://raw.githubusercontent.com/block/buzz/main/docs/MCP_DRIVEN_HOOKS.md”
[github] https://github.com/block/buzz“Agents have their own keys, their own channel memberships, and their own audit trail.”
[github] https://github.com/block/buzz“open repos, send patches, review code, run workflows, edit canvases, orchestrate other agents, drop into voice huddles, create channels”
[community] https://hn.algolia.com/api/v1/items/48995213“Commenter says Buzz uses channel-based scoping like humans would, but criticizes that it invented its own auth/permission protocol instead of using an existing one, as if the idea were novel.”
[community] https://hn.algolia.com/api/v1/items/48995213“Critique of Buzz's group permission model: "These kinds of rules never survive real world tests. For example if I create a private group just for myself and auto invite every agent... does that mean no one can now use any of them?"”

Use an official CLIweight 2

2 (weight) × 8 (quality) × 1.0 (full) = 16.0 of 20 max

[claimed-docs] https://raw.githubusercontent.com/block/buzz/main/crates/buzz-cli/README.md“buzz channels create --name "my-channel" --type stream --visibility open”
[claimed-docs] https://raw.githubusercontent.com/block/buzz/main/crates/buzz-cli/README.md“buzz gifs search # trending GIFs”
[claimed-docs] https://raw.githubusercontent.com/block/buzz/main/crates/buzz-cli/README.md“buzz repos protect set --id my-repo --ref refs/heads/main --push admin --no-force-push --no-delete”
[claimed-docs] https://raw.githubusercontent.com/block/buzz/main/crates/buzz-cli/README.md“buzz workflows trigger --workflow buzz workflows approve --token”
[probe] https://github.com/block/buzz/tree/main/crates/buzz-cli“official CLI documented at https://github.com/block/buzz/tree/main/crates/buzz-cli”

Drive the product through a documented public APIweight 3

3 (weight) × 6 (quality) × 0.6 (partial) = 10.8 of 30 max

[claimed-docs] https://raw.githubusercontent.com/block/buzz/main/crates/buzz-cli/README.md“buzz channels create --name "my-channel" --type stream --visibility open”
[claimed-docs] https://raw.githubusercontent.com/block/buzz/main/crates/buzz-cli/README.md“buzz repos protect set --id my-repo --ref refs/heads/main --push admin --no-force-push --no-delete”
[claimed-docs] https://raw.githubusercontent.com/block/buzz/main/crates/buzz-cli/README.md“buzz workflows trigger --workflow buzz workflows approve --token”
[github] https://github.com/block/buzz“Agents have their own keys, their own channel memberships, and their own audit trail.”
[probe] https://raw.githubusercontent.com/block/buzz/main/docs/MCP_DRIVEN_HOOKS.md“official MCP server documented at https://raw.githubusercontent.com/block/buzz/main/docs/MCP_DRIVEN_HOOKS.md”
[probe] https://github.com/block/buzz/tree/main/crates/buzz-cli“official CLI documented at https://github.com/block/buzz/tree/main/crates/buzz-cli”
[probe] https://buzz.xyz/llms.txt“PROBE llms.txt: HTTP 404 at https://buzz.xyz/llms.txt”
[probe] https://buzz.xyz/openapi.json“PROBE openapi: all candidate paths 404 (https://buzz.xyz/openapi.json, https://buzz.xyz/swagger.json, https://buzz.xyz/api/openapi.json, https://buzz.xyz/.well-known/openapi.json)”

Issue scoped/least-privilege API credentials for an agentweight 2

2 (weight) × 4 (quality) × 0.6 (partial) = 4.8 of 20 max

[github] https://github.com/block/buzz“Agents have their own keys, their own channel memberships, and their own audit trail.”
[claimed-docs] https://raw.githubusercontent.com/block/buzz/main/crates/buzz-cli/README.md“buzz repos protect set --id my-repo --ref refs/heads/main --push admin --no-force-push --no-delete”
[community] https://hn.algolia.com/api/v1/items/48995213“A Slack employee argues multiplayer agents in Buzz risk leaking private data to teammates, requiring complex rulesets about resource access, unlike single-player agents scoped to one user.”
[community] https://hn.algolia.com/api/v1/items/48995213“Commenter says Buzz uses channel-based scoping like humans would, but criticizes that it invented its own auth/permission protocol instead of using an existing one, as if the idea were novel.”
[community] https://hn.algolia.com/api/v1/items/48995213“Critique of Buzz's group permission model: "These kinds of rules never survive real world tests. For example if I create a private group just for myself and auto invite every agent... does that mean no one can now use any of them?"”

Build against official SDKsweight 2

2 (weight) × 4 (quality) × 0.6 (partial) = 4.8 of 20 max

[probe] https://github.com/block/buzz/tree/main/crates/buzz-cli“official CLI documented at https://github.com/block/buzz/tree/main/crates/buzz-cli”
[probe] https://raw.githubusercontent.com/block/buzz/main/docs/MCP_DRIVEN_HOOKS.md“official MCP server documented at https://raw.githubusercontent.com/block/buzz/main/docs/MCP_DRIVEN_HOOKS.md”
[github] https://github.com/block/buzz“Agents have their own keys, their own channel memberships, and their own audit trail.”
[probe] https://buzz.xyz/llms.txt“PROBE llms.txt: HTTP 404 at https://buzz.xyz/llms.txt”
[probe] https://buzz.xyz/openapi.json“PROBE openapi: all candidate paths 404 (https://buzz.xyz/openapi.json, https://buzz.xyz/swagger.json, https://buzz.xyz/api/openapi.json, https://buzz.xyz/.well-known/openapi.json)”

Subscribe to events via webhooksweight 2

2 (weight) × 0 (quality) × 0.0 (none) = 0.0 of 20 max

no evidence cited — the verdict rests on absence of evidence, re-checked on refresh

Agent-ready = 58.6 ÷ 210 × 100 = 27.9

API quality0.0/100×0.20 of the PA blend

The programmable surface once an agent is there — machine-readable spec, interactive docs, sandbox, versioning discipline.

Explore an interactive API reference with runnable examplesweight 2

2 (weight) × 0 (quality) × 0.0 (none) = 0.0 of 20 max

[probe] https://buzz.xyz/llms.txt“PROBE llms.txt: HTTP 404 at https://buzz.xyz/llms.txt”
[probe] https://buzz.xyz/openapi.json“PROBE openapi: all candidate paths 404 (https://buzz.xyz/openapi.json, https://buzz.xyz/swagger.json, https://buzz.xyz/api/openapi.json, https://buzz.xyz/.well-known/openapi.json)”
[probe] https://github.com/block/buzz/tree/main/crates/buzz-cli“official CLI documented at https://github.com/block/buzz/tree/main/crates/buzz-cli”

Download a machine-readable API spec (OpenAPI or equivalent)weight 2

2 (weight) × 0 (quality) × 0.0 (none) = 0.0 of 20 max

[probe] https://buzz.xyz/llms.txt“PROBE llms.txt: HTTP 404 at https://buzz.xyz/llms.txt”
[probe] https://buzz.xyz/openapi.json“PROBE openapi: all candidate paths 404 (https://buzz.xyz/openapi.json, https://buzz.xyz/swagger.json, https://buzz.xyz/api/openapi.json, https://buzz.xyz/.well-known/openapi.json)”

Test against a sandbox environment without touching production dataweight 1

1 (weight) × 0 (quality) × 0.0 (none) = 0.0 of 10 max

no evidence cited — the verdict rests on absence of evidence, re-checked on refresh

Rely on versioned APIs with a documented deprecation policyweight 2

2 (weight) × 0 (quality) × 0.0 (none) = 0.0 of 20 max

[probe] https://buzz.xyz/openapi.json“PROBE openapi: all candidate paths 404 (https://buzz.xyz/openapi.json, https://buzz.xyz/swagger.json, https://buzz.xyz/api/openapi.json, https://buzz.xyz/.well-known/openapi.json)”

API quality = 0.0 ÷ 70 × 100 = 0.0

Openness54.4/100×0.20 of the PA blend

Can you leave, inspect, or self-host — data export, open source, portability.

Do everything through the API that I can do in the UIweight 2

2 (weight) × 6 (quality) × 0.6 (partial) = 7.2 of 20 max

[github] https://github.com/block/buzz“open repos, send patches, review code, run workflows, edit canvases, orchestrate other agents, drop into voice huddles, create channels”
[github] https://github.com/block/buzz“Agents have their own keys, their own channel memberships, and their own audit trail.”
[claimed-docs] https://raw.githubusercontent.com/block/buzz/main/crates/buzz-cli/README.md“buzz channels create --name "my-channel" --type stream --visibility open”
[claimed-docs] https://raw.githubusercontent.com/block/buzz/main/crates/buzz-cli/README.md“buzz repos protect set --id my-repo --ref refs/heads/main --push admin --no-force-push --no-delete”
[claimed-docs] https://raw.githubusercontent.com/block/buzz/main/crates/buzz-cli/README.md“buzz workflows trigger --workflow buzz workflows approve --token”
[probe] https://buzz.xyz/openapi.json“PROBE openapi: all candidate paths 404 (https://buzz.xyz/openapi.json, https://buzz.xyz/swagger.json, https://buzz.xyz/api/openapi.json, https://buzz.xyz/.well-known/openapi.json)”
[probe] https://github.com/block/buzz/tree/main/crates/buzz-cli“official CLI documented at https://github.com/block/buzz/tree/main/crates/buzz-cli”

Export all of my data in open formats and leaveweight 3

3 (weight) × 4 (quality) × 0.6 (partial) = 7.2 of 30 max

[claimed-docs] https://raw.githubusercontent.com/block/buzz/main/VISION.md“No GitHub. No Discord. No stitching five services together. The project lives in one place, and that place is yours.”
[claimed-docs] https://raw.githubusercontent.com/block/buzz/main/VISION.md“Run your own relay for one community, or let an operator host thousands on shared infrastructure — same OSS codebase, same URL-is-your-workspace experience either way.”
[probe] https://github.com/block/buzz/tree/main/crates/buzz-cli“official CLI documented at https://github.com/block/buzz/tree/main/crates/buzz-cli”

Read the product's source under an open licenseweight 2

2 (weight) × 8 (quality) × 1.0 (full) = 16.0 of 20 max

[github] https://github.com/block/buzz“Turn a feature branch into a room where patches, CI, review, and the merge decision live together — so the channel becomes the record of why the code exists.”
[github] https://github.com/block/buzz“open repos, send patches, review code, run workflows, edit canvases, orchestrate other agents, drop into voice huddles, create channels”
[claimed-docs] https://raw.githubusercontent.com/block/buzz/main/VISION.md“No GitHub. No Discord. No stitching five services together. The project lives in one place, and that place is yours.”
[community] https://news.ycombinator.com/item?id=48995213“"Excited for 'decentralized, self-sovereign, and open source.' Indifferent to 'groupchat for agents'."”
[probe] https://github.com/block/buzz/tree/main/crates/buzz-cli“official CLI documented at https://github.com/block/buzz/tree/main/crates/buzz-cli”

Self-host the core productweight 3

3 (weight) × 8 (quality) × 1.0 (full) = 24.0 of 30 max

[claimed-docs] https://raw.githubusercontent.com/block/buzz/main/VISION.md“No GitHub. No Discord. No stitching five services together. The project lives in one place, and that place is yours.”
[claimed-docs] https://raw.githubusercontent.com/block/buzz/main/VISION.md“Run your own relay for one community, or let an operator host thousands on shared infrastructure — same OSS codebase, same URL-is-your-workspace experience either way.”
[github] https://github.com/block/buzz“Turn a feature branch into a room where patches, CI, review, and the merge decision live together — so the channel becomes the record of why the code exists.”
[probe] https://github.com/block/buzz/tree/main/crates/buzz-cli“official CLI documented at https://github.com/block/buzz/tree/main/crates/buzz-cli”

Openness = 54.4 ÷ 100 × 100 = 54.4

Built-in AI30.7/100×0.15 of the PA blend

Inside-out: how agentic the product itself is for its users — built-in assistants, autonomous features.

Get AI-generated insights and suggestions from my data inside the productweight 2

2 (weight) × 3 (quality) × 0.6 (partial) = 3.6 of 20 max

[github] https://github.com/block/buzz“Agents search six months of history and post the threads, not vibes.”
[github] https://github.com/block/buzz“open repos, send patches, review code, run workflows, edit canvases, orchestrate other agents, drop into voice huddles, create channels”
[github] https://github.com/block/buzz“Search the conversation, the patch, the workflow run, and the approval in one place”

Set up automations that run autonomously in the backgroundweight 2

2 (weight) × 6 (quality) × 0.6 (partial) = 7.2 of 20 max

[github] https://github.com/block/buzz“open repos, send patches, review code, run workflows, edit canvases, orchestrate other agents, drop into voice huddles, create channels”
[github] https://github.com/block/buzz“Agents have their own keys, their own channel memberships, and their own audit trail.”
[claimed-docs] https://raw.githubusercontent.com/block/buzz/main/crates/buzz-cli/README.md“buzz workflows trigger --workflow buzz workflows approve --token”
[probe] https://raw.githubusercontent.com/block/buzz/main/docs/MCP_DRIVEN_HOOKS.md“official MCP server documented at https://raw.githubusercontent.com/block/buzz/main/docs/MCP_DRIVEN_HOOKS.md”

Delegate tasks to a built-in AI assistant inside the productweight 3

3 (weight) × 6 (quality) × 0.6 (partial) = 10.8 of 30 max

[github] https://github.com/block/buzz“open repos, send patches, review code, run workflows, edit canvases, orchestrate other agents, drop into voice huddles, create channels”
[github] https://github.com/block/buzz“Agents have their own keys, their own channel memberships, and their own audit trail.”
[probe] https://raw.githubusercontent.com/block/buzz/main/docs/MCP_DRIVEN_HOOKS.md“official MCP server documented at https://raw.githubusercontent.com/block/buzz/main/docs/MCP_DRIVEN_HOOKS.md”
[github] https://github.com/block/buzz“Agents search six months of history and post the threads, not vibes.”

Operate the product with natural-language commandsweight 2

2 (weight) × 5 (quality) × 0.6 (partial) = 6.0 of 20 max

[github] https://github.com/block/buzz“open repos, send patches, review code, run workflows, edit canvases, orchestrate other agents, drop into voice huddles, create channels”
[claimed-docs] https://raw.githubusercontent.com/block/buzz/main/crates/buzz-cli/README.md“buzz channels create --name "my-channel" --type stream --visibility open”
[claimed-docs] https://raw.githubusercontent.com/block/buzz/main/crates/buzz-cli/README.md“buzz repos protect set --id my-repo --ref refs/heads/main --push admin --no-force-push --no-delete”
[claimed-docs] https://raw.githubusercontent.com/block/buzz/main/crates/buzz-cli/README.md“buzz workflows trigger --workflow buzz workflows approve --token”
[probe] https://raw.githubusercontent.com/block/buzz/main/docs/MCP_DRIVEN_HOOKS.md“official MCP server documented at https://raw.githubusercontent.com/block/buzz/main/docs/MCP_DRIVEN_HOOKS.md”
[probe] https://github.com/block/buzz/tree/main/crates/buzz-cli“official CLI documented at https://github.com/block/buzz/tree/main/crates/buzz-cli”

Built-in AI = 27.6 ÷ 90 × 100 = 30.7

Automation15.0/100×0.15 of the PA blend

Depth of automation primitives — rules, scheduling, bulk operations, webhooks.

Perform bulk operations across many items at onceweight 2

2 (weight) × 0 (quality) × 0.0 (none) = 0.0 of 20 max

[claimed-docs] https://raw.githubusercontent.com/block/buzz/main/crates/buzz-cli/README.md“buzz channels create --name "my-channel" --type stream --visibility open”
[claimed-docs] https://raw.githubusercontent.com/block/buzz/main/crates/buzz-cli/README.md“buzz repos protect set --id my-repo --ref refs/heads/main --push admin --no-force-push --no-delete”
[claimed-docs] https://raw.githubusercontent.com/block/buzz/main/crates/buzz-cli/README.md“buzz workflows trigger --workflow buzz workflows approve --token”

Define rules that trigger actions automatically on eventsweight 3

3 (weight) × 5 (quality) × 0.6 (partial) = 9.0 of 30 max

[claimed-docs] https://raw.githubusercontent.com/block/buzz/main/crates/buzz-cli/README.md“buzz workflows trigger --workflow buzz workflows approve --token”
[probe] https://raw.githubusercontent.com/block/buzz/main/docs/MCP_DRIVEN_HOOKS.md“official MCP server documented at https://raw.githubusercontent.com/block/buzz/main/docs/MCP_DRIVEN_HOOKS.md”
[probe] https://github.com/block/buzz/tree/main/crates/buzz-cli“official CLI documented at https://github.com/block/buzz/tree/main/crates/buzz-cli”

Schedule recurring jobs or workflowsweight 2

2 (weight) × 0 (quality) × 0.0 (none) = 0.0 of 20 max

no evidence cited — the verdict rests on absence of evidence, re-checked on refresh

Version, review, and roll back my automationsweight 1

1 (weight) × 5 (quality) × 0.6 (partial) = 3.0 of 10 max

[github] https://github.com/block/buzz“Turn a feature branch into a room where patches, CI, review, and the merge decision live together — so the channel becomes the record of why the code exists.”
[github] https://github.com/block/buzz“Search the conversation, the patch, the workflow run, and the approval in one place”
[claimed-docs] https://raw.githubusercontent.com/block/buzz/main/crates/buzz-cli/README.md“buzz repos protect set --id my-repo --ref refs/heads/main --push admin --no-force-push --no-delete”
[claimed-docs] https://raw.githubusercontent.com/block/buzz/main/crates/buzz-cli/README.md“buzz workflows trigger --workflow buzz workflows approve --token”

Automation = 12.0 ÷ 80 × 100 = 15.0