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Official agent skill

Cell Architecture

by getsentry in getsentry/sentry

Reference and active migration guide for Sentry's cell architecture.

OfficialCustom licenceAuto-check passedBackend & APIs

Install Cell Architecture

skills CLI
$ npx skills add getsentry/sentry --skill cell-architecture -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install getsentry/sentry cell-architecture --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/getsentry/sentry.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/cell-architecture .claude/skills/cell-architecture && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
cell-architecture
GitHub stars
45k
Token cost
~4.6k tokens
SKILL.md length
2,036 words
Files
1
Skills in repo
29
Repo updated
First seen
Licence
Custom licence

At a glance

Reference and active migration guide for Sentry's cell architecture.

  • Works in 3 steps: Locality API — {locality}.sentry.io → Ingestion — ingest.{locality}.sentry.io → Control silo — sentry.io
  • Tasks that involve Code migrations
  • SKILL.md covers Cell vs Locality, Paths Into a Cell, Cross-Cell Data Access and Running Cell-Routing proxy…, plus 1 more section
  • Calls docker

What it does

Cell Architecture is an agent skill from getsentry/sentry, published by the product's own GitHub organization. Reference and active migration guide for Sentry's cell architecture. Explains what cells and localities are and why they're different, how requests reach cells via Synapse API routing, ingestion routing, and the control silo gateway, and how to safely query cross-cell data without silently missing results. The migration section covers how to do migration work: draining the URLNAMETOACTION registry in testurls.py to zero (with a recipe for each action type), rolling deploy safety and the two-phase pattern required…

Its SKILL.md is about 4.6k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Backend & APIs, covering Code migrations. It works with Sentry, Amazon Web Services and Jira. The repository describes itself as: Developer-first error tracking and performance monitoring.

When your agent uses it

  • Tasks that involve Code migrations

Example prompts

  • “/cell-architecture”

Requirements

  • Python 3
  • Docker

Workflow steps

3 steps, taken from the step headings in SKILL.md.

  1. Locality API — {locality}.sentry.io
  2. Ingestion — ingest.{locality}.sentry.io
  3. Control silo — sentry.io

What it can do on your machine

Read from SKILL.md and the folder at commit 87d1203. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • docker

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    Links to these hosts (documentation or services it may open):

    • github.com

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Cell Architecture loads about 4.6k tokens when it runs. Until then it costs about 210 tokens; SKILL.md has 2,036 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~210
When it runs · the whole SKILL.md, loaded when a task matches
~4.6k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 2,036 words (~4,607 tokens).

“These are two different layers of the architecture.”

— opening of SKILL.md by getsentry, Custom licence
name
cell-architecture

Read the full SKILL.md on GitHub

Files

Just SKILL.md in .agents/skills/cell-architecture of getsentry/sentry.

Open the folder on GitHubat commit 87d1203

Compare with similar skills

Cell Architecture next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Cell Architecture compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Cell Architecture this skillgetsentry/sentry45k—~4.6kAutomated safety check: PassCustom licence
AWS Sam Bootstrapgiuseppe-trisciuoglio/developer-kit355—~954Automated safety check: NotesMIT
Drawio AWSsparklabx/drawio-ai-kit652—~1.6kAutomated safety check: PassMIT
Diagnose Backend BugQoderAI/better-harness2.4k—~1.2kAutomated safety check: PassMIT
LLM To Bedrockaws/agent-toolkit-for-aws2.8k—~16kAutomated safety check: PassApache-2.0
Sentry Issueshopsys/shopsys350—~728Automated safety check: PassCustom licence

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Works with

Categories

Questions about Cell Architecture

What does Cell Architecture do?

Reference and active migration guide for Sentry's cell architecture. Cell Architecture is an agent skill from getsentry/sentry, published by the product's own GitHub organization. Reference and active migration guide for Sentry's cell architecture.

When should I use Cell Architecture?

Cell Architecture fits situations like: tasks that involve Code migrations.

How do I install Cell Architecture in Claude Code?

Run `npx skills add getsentry/sentry --skill cell-architecture -a claude-code`. Or copy the skill folder (.agents/skills/cell-architecture in getsentry/sentry) into .claude/skills/cell-architecture in your project. Claude Code loads it when a task matches its description.

How do I install Cell Architecture in Codex?

Run `npx skills add getsentry/sentry --skill cell-architecture -a codex`. Or copy the skill folder (.agents/skills/cell-architecture in getsentry/sentry) into .agents/skills/cell-architecture in your project. Codex loads it when a task matches its description.

Can I use Cell Architecture in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add getsentry/sentry --skill cell-architecture -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/cell-architecture, .gemini/skills/cell-architecture, .github/skills/cell-architecture and .opencode/skills/cell-architecture in your project.

What does Cell Architecture need to run?

Going by SKILL.md and its folder, Cell Architecture needs the command-line tools its instructions call (docker). Our summary lists: Python 3; Docker.

Does Cell Architecture access the network?

SKILL.md names 1 domain. As links in the text: github.com. This is read from the text; nothing was executed.

Is Cell Architecture safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Cell Architecture use?

Cell Architecture has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Cell Architecture use?

About 4.6k tokens (SKILL.md is roughly 18k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Cell Architecture?

Skills that share tags, products or a category with Cell Architecture: AWS Sam Bootstrap (giuseppe-trisciuoglio/developer-kit, 355 stars), Drawio AWS (sparklabx/drawio-ai-kit, 652 stars), Diagnose Backend Bug (QoderAI/better-harness, 2.4k stars) and LLM To Bedrock (aws/agent-toolkit-for-aws, 2.8k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Cell Architecture?

getsentry (a GitHub organization, an official publisher) maintains it in getsentry/sentry, which has 45,495 GitHub stars. The repository holds 29 skills in this directory. The repository was last updated on October 7, 2026.

Source: getsentry/sentry on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.