Borrowing it
Nothing to install: this file belongs to nylas/cli. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/nylas/cli/main/.claude/agents/README.mdgit clone --depth 1 https://github.com/nylas/cliWrote 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/agents/nylas/cli/readme)<a href="https://agentmods.dev/agents/nylas/cli/readme"><img src="https://agentmods.dev/badge/agents/nylas/cli/readme/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/agents/nylas/cli/readme"><img src="https://agentmods.dev/badge/agents/nylas/cli/readme.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 | $0.00000 | $0.01074 |
| Opus 5.5 | $0.00000 | $0.00430 |
| Sonnet 5.5 | $0.00000 | $0.00215 |
| Haiku 4.5 | $0.00000 | $0.00107 |
Grade A, and why
README 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 1mo 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.
How it starts
The opening of the file, as written. The whole thing — 136 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Subagent Documentation
This directory contains specialized agents for the Nylas CLI codebase.
Available Agents
| Agent | Model | Purpose | Parallel Safe |
|---|---|---|---|
code-writer |
sonnet | Implementation tasks | Limited |
test-writer |
sonnet | Test generation | Limited |
code-reviewer |
opus | Code review | Safe |
security-auditor |
opus | Security vulnerability analysis | Safe |
documentation-writer |
sonnet | Documentation updates | Limited |
codebase-explorer |
haiku | Exploration | Safe |
mistake-learner |
sonnet | Learning capture | Serial only |
Parallelization Guide
Use parallel agents to explore or review the 745-file codebase without exhausting context.
When to Use Parallel Agents
| Task | Agents | Why |
|---|---|---|
| Full codebase exploration | 4 | One per major directory |
| Feature search | 3 | Search cli, adapters, tui simultaneously |
| Multi-file PR review | 4 | Review different files in parallel |
| Test coverage analysis | 4 | Analyze different packages |
Invocation Patterns
# Full exploration (3 agents)
"Explore using 3 parallel agents:
- Agent 1: internal/cli/
- Agent 2: internal/adapters/
- Agent 3: internal/domain/ + ports/ + tui/"
# Feature search (3 agents)
"Find all email-related code using 3 agents across cli, adapters, tui"
# PR review (4 agents)
"Review these 8 files using 4 parallel code-reviewer agents"
Directory Parallelization Value
| Directory | Files | Parallel Value |
|---|---|---|
internal/cli/ |
268 | HIGH |
internal/adapters/ |
158 | HIGH |
internal/tui/ |
77 | MEDIUM |
internal/domain/ |
21 | LOW (shared) |
Safe vs Unsafe
Safe to parallelize:
- Explore, review, search across different directories
- Multiple code-reviewers on different files
- Multiple codebase-explorers
Avoid parallelizing:
- Write to same file
- Modify
domain/orports/nylas.goin parallel - Run integration tests in parallel (rate limiting)
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.
- 1mo ago First seen · 136 lines · 0 tokens per session scan A f6f63e807139
README is an agent published in the GitHub repository nylas/cli (76 stars, last pushed 12d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 1,074 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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