sidecar-patterns SKILL.md skillA

sidecar-patterns from tkhq/tk is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add tkhq/tk/sidecar-patterns@git:20261016.fd9d680

Pins git:20261016.fd9d680 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
tkhq/tk
Path
skills/sidecar-patterns/SKILL.md
Versions recorded
5
Latest version
git:20261016.fd9d680, committed Oct 16, 2026
First version recorded
Sep 29, 2026
Size
12,421 bytes
Repository stars
62
License
Apache-2.0

Run tk beside an unattended agent so the agent process holds only what it needs: separate credential stores, a renewal loop outside the agent, secrets injected at startup, an SSH socket per OS user, commit signing through a broker socket, and an operator alert that does not depend on the agent's own credential. Use when deploying an agent that uses tk on a VM or in a container, or when a deployment keeps losing its session key; not for choosing policies or approval models.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Sidecar patterns

Result: a deployment where the agent reads its secrets once at startup, a separate renewal
loop keeps the agent's expiring credential fresh, SSH goes through a socket, git signs
commits through a broker's socket, and an operator hears about an expired credential from
something other than the agent. Every `tk` step in this workflow is a command another workflow already documents; this workflow fixes where each one runs and what state it keeps.

## Reference

- [sessions](../../docs/sessions.md): the four `session` commands and their records.
- [secrets](../../docs/secrets.md): `secret env` and pending exports.
- [ssh-agent](../../docs/ssh-agent.md): the agent socket and its lifecycle.
- [gpg-signing](../../docs/gpg-signing.md): `gpg agent serve` and the client socket.
- [authentication](../../docs/authentication.md): the `whoami` record and how `HOME` and `TK_PROFILE` select a profile.

## Rules

- Separation means one boundary (a container, VM, sandbox, or OS user), one
  `HOME`, one process tree, and one set of mounts per principal; the agent's
  profile and the provisioner's profile never share a credential directory.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add tkhq/tk/sidecar-patterns@sha256:a271157df2b50acc

The line at the top of this page pins the label git:20261016.fd9d680, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_s6ef6gdwn4jv7jqi.svg)](https://markdownregistry.com/a/art_s6ef6gdwn4jv7jqi)

1 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 5 versions of this file, between Sep 29, 2026 and Oct 16, 2026, about one every 4 days.

versioncommittedcommitsizeaudit
git:20261016.fd9d680 latest2026-10-16 fd9d680 12,421 BA view · diff
git:20260930.97865fa2026-09-30 97865fa 12,386 BA view · diff
git:20260930.8ac73e72026-09-30 8ac73e7 12,062 BA view · diff
git:20260929.84fc3292026-09-29 84fc329 12,143 BA view · diff
git:20260929.338343f2026-09-29 338343f 11,735 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (12421 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

tkhq/tk · 62 stars · license Apache-2.0 · pushed 2026-11-06 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_s6ef6gdwn4jv7jqi
GET https://markdownregistry.com/api/v1/resolve?ref=tkhq/tk/sidecar-patterns
GET https://markdownregistry.com/api/v1/blob/a271157df2b50accaf0f95fbd8b9034d960ffec7987a133e8bb44530c5db4270

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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