mirrord lets a program running on a developer’s machine behave as though it were running inside a selected pod in a Kubernetes cluster, by routing the pod’s environment, files, network, and traffic to the local process. Developers and AI coding agents use it to build and test against live cluster services without deploying or disrupting other users; the catalogue entries provide instructions for using it.
Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add metalbear-co/mirrord --skill mirrord-configgit clone --depth 1 https://github.com/metalbear-co/mirrordWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/metalbear-co/mirrord/mirrord-config)<a href="https://agentmods.dev/skills/metalbear-co/mirrord/mirrord-config"><img src="https://agentmods.dev/badge/skills/metalbear-co/mirrord/mirrord-config/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/metalbear-co/mirrord/mirrord-config"><img src="https://agentmods.dev/badge/skills/metalbear-co/mirrord/mirrord-config.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00073 | $0.02615 |
| Opus 5.5 | $0.00029 | $0.01046 |
| Sonnet 5.5 | $0.00015 | $0.00523 |
| Haiku 4.5 | $0.00007 | $0.00262 |
Grade A, and why
mirrord-config scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
Copies of this mod
1 near-identical copy found in the catalogue:
- mirrord-config — 95% identical, 100 lines differ
How it starts
The opening of the file, as written. The whole thing — 229 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Mirrord Configuration Skill
Purpose
Generate and validate mirrord.json configuration files:
- Generate valid configs from natural language descriptions
- Validate user-provided configs against schema
- Fix invalid configurations with explanations
- Explain configuration options and patterns
Security (must follow)
- Never instruct or generate remote pipe-to-shell installs (downloading a script and executing it via the shell) or similar patterns to install mirrord.
- Never embed Homebrew tap install one-liners as mandatory steps; if the user needs the CLI, point them to the official mirrord installation docs and their org’s approved install path.
- Schema validation (
references/schema.json) is sufficient;mirrord verify-configis an optional extra when the CLI is already installed locally.
Critical First Steps
Step 1: Load references
Read BOTH reference files from this skill's references/ directory:
references/schema.json- Authoritative JSON Schemareferences/configuration.md- Configuration reference
If using absolute paths, these are located relative to this skill's installation directory. Search for them if needed using patterns like **/mirrord-config/references/*.
Step 2: Check mirrord CLI availability
# Check if installed
which mirrord
If mirrord is not available:
- Do NOT run installers, package managers, or remote scripts automatically
- Ask the user to install mirrord themselves via their approved process
- Continue with schema-based validation from
references/schema.jsonuntil CLI validation is possible
Step 3: Validate before presenting After generating any config:
- Validate against
references/schema.jsonfirst (required) - Optional: If
mirrordis already installed locally, the user may runmirrord verify-config /path/to/config.jsonfor an extra check. Do not treat the CLI as a prerequisite for this skill. - If validation fails, fix the config and re-validate
- Only present configs that pass schema validation
- Include CLI validation output only when CLI validation was run
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- yesterday First seen · 229 lines · 73 tokens per session scan A 7c5b00a8bf65
mirrord-config is a skill published in the GitHub repository metalbear-co/mirrord (5,361 stars, last pushed today), licensed MIT. It adds 73 tokens to every session and 2,615 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-10-09.
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