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 agentmods add agents/a5c-ai/babysitter/copilotgit clone --depth 1 https://github.com/a5c-ai/babysitterWhat 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 | $0.00000 | $0.00410 |
| Opus 5 | $0.00000 | $0.00205 |
| Sonnet 5 | $0.00000 | $0.00082 |
| Haiku 4.5 | $0.00000 | $0.00041 |
Grade A, and why
copilot 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 3d ago.
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.
What it actually says
GitHub Copilot
Adapter for GitHub Copilot CLI (gh copilot).
Install
adapters install copilot
Supported on macOS, Linux and Windows. The adapter spawns gh copilot suggest ..., so the gh CLI must be on PATH.
Auth
- GitHub token — set
GITHUB_TOKEN. - OAuth device flow —
gh auth loginhandles this.
Settings: ~/.config/github-copilot/settings.json.
Minimal run
adapters run copilot --prompt "How do I rebase onto main?"
Notable flags
The adapter runs:
gh copilot suggest "<prompt>"
It does not currently forward --model or approval modes — Copilot CLI selects the model server-side. Default bundled model is gpt-4o.
Session files
- Location:
~/.config/github-copilot/sessions/*.jsonl - Output is parsed line-by-line; non-JSON lines are treated as plain text deltas.
Plugins
Plugin support: yes — GitHub Copilot CLI plugin marketplace with agents/skills/hooks/MCP packages.
Plugin Management
adapters plugin install copilot <plugin>
adapters plugin list copilot
adapters plugin update copilot <plugin>
adapters plugin uninstall copilot <plugin>
MCP Servers
adapters mcp install copilot <mcp-server>
adapters mcp list copilot
Capabilities
Text streaming only. No native tool calling, no parallel tool calls, no JSON mode, no image input.
Known limitations
- Cannot resume or fork sessions server-side — Copilot CLI is stateless per invocation.
--modelis ignored (Copilot picks the model).- Requires
ghCLI and an authenticated GitHub user. - Project-level config not supported.
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.
- 3d ago First seen · 69 lines · 0 tokens per session scan A 97eee16021fa
copilot is an agent published in the GitHub repository a5c-ai/babysitter (1,757 stars, last pushed yesterday), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 410 tokens. 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 2026-08-30.
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