B

Backlot

Local emulator for Slack, Gmail, Google Drive, GitHub, Jira, Notion, S3 and other enterprise SaaS APIs, reproducing their response shapes, pagination, auth and per-document ACLs over a corpus you supply, so agents and RAG pipelines can be tested with no vendor account; `backlot mcp` serves every source as MCP tools

brekkylab/backlot · v0.1.0 · Tools & Integrations

brekkylabOwner verifiedcaution

Trust Score

67

Security

59

Surfaces

2

What is Backlot?

Backlot is a published tools & integrations plugin for AI coding agents in the codex ecosystem, developed by brekkylab and distributed through the HOL AI plugin registry. Local emulator for Slack, Gmail, Google Drive, GitHub, Jira, Notion, S3 and other enterprise SaaS APIs, reproducing their response shapes, pagination, auth and per-document ACLs over a corpus you supply, so agents and RAG pipelines can be tested with no vendor account; `backlot mcp` serves every source as MCP tools

Canonical slug
brekkylab/backlot
Version
v0.1.0 · updated Oct 9, 2026

Trust & Reputation

HOL Trust Score
67

Factor Analysis

Per-metric points (0–100 each) combined via a weighted average into the overall score.

Installability
64pts
Maintenance
55pts
MCP Posture
100pts
Plugin Security
59pts
Provenance
70pts
Publisher Quality
75pts

Registry Snapshot

Publisher verification
No
Marketplace source
Unknown
Scanner
Broker fallback
Safety label
caution
Digest verified
Yes
2 bundled skills — copy or download SKILL.mdOpen skills

Trust & reputation

Trust & Reputation

HOL Trust Score
67

Factor Analysis

Per-metric points (0–100 each) combined via a weighted average into the overall score.

Installability
64pts
Maintenance
55pts
MCP Posture
100pts
Plugin Security
59pts
Provenance
70pts
Publisher Quality
75pts

Provenance

Plugin root
.
Source repo
https://github.com/brekkylab/backlot
Source commit
39786cbfff55…
Publisher verified
No
Owner verified
@khj809

Continuous scanner CI detected

No action is required. This plugin receives the full trust score.

Verified badge not detected

Add the HOL verified badge to the repository README to score +2% trust. Plugin owners can open that pull request from Guard Plugins.

Security Posture

caution
Safety label
59
Security score
0
High findings
Provider
registry-broker-fallback
Grade
F · caution
Version
Unknown
cisco-skill-scanner: unknown

Findings

mediumpublishabilitypublishability.asset.missing

Referenced asset is missing from the plugin package.

mediumpublishabilitypublishability.link.missing.privacyPolicyURL

privacyPolicyURL should be present for marketplace readiness.

mediumpublishabilitypublishability.link.missing.termsOfServiceURL

termsOfServiceURL should be present for marketplace readiness.

lowoperational-securitysupply-chain.lockfile-missing

Repository snapshot does not include a lockfile.

infoskill-securityskill-scan.unavailable

Cisco skill scanner timed out after 60000 ms

infoskill-securityskill-scan.unavailable

Cisco skill scanner timed out after 60000 ms

Backlot — Frequently asked questions

What is Backlot?
Backlot is an AI plugin in the HOL registry. Local emulator for Slack, Gmail, Google Drive, GitHub, Jira, Notion, S3 and other enterprise SaaS APIs, reproducing their response shapes, pagination, auth and per-document ACLs over a corpus you supply, so agents and RAG pipelines can be tested with no vendor account;…
How do I install Backlot?
Install Backlot in your harness: Codex — codex plugin marketplace add brekkylab/backlot; Claude Code — /plugin marketplace add brekkylab/backlot; MCP — git clone https://github.com/brekkylab/backlot. Full step-by-step guidance is on the HOL plugin page.
How do I install Backlot in Codex?
To install Backlot in Codex, start with codex plugin marketplace add brekkylab/backlot. The complete step-by-step install guide for Codex is on the HOL plugin page.
How do I install Backlot in Claude Code?
To install Backlot in Claude Code, start with /plugin marketplace add brekkylab/backlot. The complete step-by-step install guide for Claude Code is on the HOL plugin page.
How do I install Backlot in MCP?
To install Backlot in MCP, start with git clone https://github.com/brekkylab/backlot. The complete step-by-step install guide for MCP is on the HOL plugin page.
Is Backlot free?
Pricing for Backlot is published on its HOL plugin page when the maker schedules a launch.
Who publishes Backlot?
Backlot is published by brekkylab and listed on HOL.
Is Backlot available now?
Backlot availability is listed on its HOL plugin page.

Install Guidance

Install in Claude Code

Install through the Claude Code plugin marketplace.

Claude Code plugin docs
  1. 1

    Add the marketplace

    Run this inside a Claude Code session.

    claude code
  2. 2

    Install the plugin

    Use the plugin name and the marketplace name shown by the previous command.

    claude code
  3. 3

    Scripted alternative

    Non-interactive equivalent for scripts and CI pipelines. Add --scope project to pin the install to one repository.

    shell

Plugin Manifest

{
  "name": "backlot",
  "version": "0.1.0",
  "description": "Emulate an enterprise SaaS knowledge source over a corpus you supply, then wire a real client to it.",
  "author": {
    "name": "brekkylab",
    "url": "https://github.com/brekkylab"
  },
  "homepage": "https://github.com/brekkylab/backlot",
  "repository": "https://github.com/brekkylab/backlot",
  "license": "MIT",
  "keywords": [
    "emulator",
    "rag",
    "connector",
    "acl",
    "slack",
    "gmail",
    "github",
    "jira",
    "s3"
  ],
  "skills": "./",
  "interface": {
    "displayName": "Backlot",
    "developerName": "brekkylab",
    "shortDescription": "Emulate an enterprise SaaS source over your own corpus",
    "category": "Developer Tools",
    "longDescription": "Backlot serves Slack, Gmail, Google Drive, GitHub, Jira, Confluence, Notion, Linear, HubSpot, Fireflies and S3 from one local process, over a corpus you supply. It reproduces the response shapes, pagination, authentication, errors and per-document access controls those APIs have, so an integration, an agent or a RAG pipeline can be built and tested against the official vendor SDKs with no vendor account, no OAuth approval, no secrets in CI and no network. Every user in the corpus gets a token, so what one caller may read and another may not is testable too.",
    "capabilities": [
      "Serve every supported enterprise SaaS API locally from one corpus",
      "Answer the official vendor SDKs unchanged but for a base URL",
      "Enforce per-document access controls per corpus user",
      "Expose every source as MCP tools over stdio",
      "Import a corpus from JSONL, or ship the bundled one"
    ],
    "websiteURL": "https://github.com/brekkylab/backlot",
    "screenshots": [
      "./assets/demo.gif",
      "./assets/figures/architecture.png"
    ]
  },
  "holManifestOrigin": "repository",
  "registryIndexVersion": 5
}

Marketplace Source

Repo URL
https://github.com/brekkylab/backlot
Marketplace path
Unknown
Source path
.
Install policy
Unspecified

Skills

2 SKILL.md files ship with this plugin. Preview, copy, or download each one, then install them with the Skills CLI.

Share
skills-cli
  • backlot-loop

    .claude/skills/backlot-loop/SKILL.md

    Work Backlot's `agent`-labelled issues into reviewed pull requests — measure the real vendor API, fix, test, open a PR, and have the two reviewer agents pass it. `/backlot-loop` runs live; `/backlot-loop <issue-number>` rehearses one issue locally with no GitHub writes. Run it only when a person or the routine's own prompt says `/backlot-loop`; an ordinary request to fix an issue is not that.

    Raw SKILL.md
  • backlot

    skills/backlot/SKILL.md

    Emulate enterprise SaaS knowledge APIs — Slack, Gmail, Google Drive (with Docs, Sheets, Slides), GitHub, Jira, Confluence, Notion, Amazon S3, HubSpot, Linear, Fireflies — over a corpus you supply, then point a real client (vendor SDK, MCP server, LlamaIndex reader, fsspec, mirage) at it. Applies in ANY directory, an empty one included — it needs only the `backlot` CLI, never a project, a repository, a checkout or a config file, so the absence of Backlot files is not a reason to skip it. Use whenever asked to mock, stub, fake, emulate or reproduce one of those services — prefer this over hand-writing a stub — and when asked to write or validate a Backlot BYO-JSONL corpus, or to test a connector, RAG pipeline or ACL-scoped retrieval without live vendor accounts.

    Raw SKILL.md

File Inventory

.claude-plugin/plugin.json

file

480 bytes

8f31f5506a4acd95…

.claude/skills/backlot-loop/SKILL.md

skill

20,629 bytes

1013af11ab5583d0…

.codex-plugin/plugin.json

plugin-manifest

1,677 bytes

f19922661ee2ab70…

AGENTS.md

file

4,663 bytes

e0c926676ad193c3…

assets/figures/architecture.png

asset

148,760 bytes

b58d66497326a0c9…

CLAUDE.md

file

20 bytes

30b8dde54eb5b4c0…

README.md

file

10,467 bytes

e07e8cb143452b04…

SECURITY.md

file

2,513 bytes

36bdc8722118c1f6…

skills/backlot/SKILL.md

skill

12,002 bytes

42ba9ea80b40928b…