Headlong is a Bash-based agent microharness for running language-model agents in persistent, self-directed loops. People use it to create agents that maintain ongoing interests and projects, interact through shell commands, and share one stream of conversations across a team and chat services.
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 laude-institute/headlong --skill googleworkspacegit clone --depth 1 https://github.com/laude-institute/headlongWrote 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/laude-institute/headlong/googleworkspace)<a href="https://agentmods.dev/skills/laude-institute/headlong/googleworkspace"><img src="https://agentmods.dev/badge/skills/laude-institute/headlong/googleworkspace.svg" alt="Measured on agentmods" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to high
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- high Privilege Escalation · line 28 Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
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 | $0.00022 | $0.01273 |
| Opus 5 | $0.00011 | $0.00636 |
| Sonnet 5 | $0.00004 | $0.00255 |
| Haiku 4.5 | $0.00002 | $0.00127 |
Grade A, and why
googleworkspace scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 184 lines — stays where its author put it; the contents beside it link to each section on GitHub.
googleworkspace — Google Workspace via the gws CLI
Overview
The gws CLI provides access to Google Workspace APIs (Drive, Gmail, Calendar, Sheets, Docs, Chat, and more). Commands are dynamically generated from Google's Discovery Service.
gws <service> <resource> <method> [flags]
Helper commands (prefixed with +) provide shortcuts for common workflows.
Authentication
# Browser-based OAuth (interactive, one-time)
gws auth login
# Or use an existing access token
export GOOGLE_WORKSPACE_CLI_TOKEN=$(gcloud auth print-access-token)
Global flags
| Flag | Description |
|---|---|
--params '{...}' |
URL/query parameters (JSON) |
--json '{...}' |
Request body (JSON) |
--dry-run |
Preview request without calling the API |
--page-all |
Auto-paginate all results (NDJSON output) |
--upload <PATH> |
Upload file content (multipart) |
--format <FMT> |
Output format: json (default), table, yaml, csv |
Discovering commands
Always inspect before calling an unfamiliar method:
gws <service> --help
gws schema <service>.<resource>.<method>
Gmail
# Send an email
gws gmail +send --to [email protected] --subject "Hello" --body "Hi there"
# Unread inbox summary
gws gmail +triage
# Read a message body
gws gmail +read --message-id MESSAGE_ID
# Reply to a message (threading handled automatically)
gws gmail +reply --message-id MESSAGE_ID --body "Thanks!"
# Reply-all
gws gmail +reply-all --message-id MESSAGE_ID --body "Acknowledged"
# Forward a message
gws gmail +forward --message-id MESSAGE_ID --to [email protected]
# Watch for new emails (streams NDJSON)
gws gmail +watch
# List messages via API
gws gmail users messages list --params '{"maxResults": 10}'
Calendar
# Show upcoming events
gws calendar +agenda
# Show agenda in a specific timezone
gws calendar +agenda --timezone America/New_York
# Create an event
gws calendar +insert --title "Standup" --time "2026-05-02T09:00:00"
# List events via API
gws calendar events list --params '{"calendarId": "primary", "maxResults": 5}'
# Check free/busy
gws calendar freebusy query --json '{"timeMin": "...", "timeMax": "...", "items": [{"id": "primary"}]}'
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.
- 8d ago First seen · 184 lines · 22 tokens per session scan A 8520c992cc36
googleworkspace is a skill published in the GitHub repository laude-institute/headlong (1,126 stars, last pushed 2d ago), licensed Apache-2.0. It adds 22 tokens to every session and 1,273 once invoked, about $0.0001 per session on Opus 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 2026-08-30.
Other skills, from other repositories
google-workspace
Gmail, Calendar, Drive, Docs, Sheets via gws CLI or Python.
feishu
Work with Feishu or Lark bots, docs, sheets, bitables, approval flows, and OpenAPI/MCP setup without hardcoding credentials.
google-workspace
Access Google Workspace APIs (Drive, Docs, Calendar, Gmail, Sheets, Slides, Chat, People) via local helper scripts without MCP. Handles OAuth login and direct API calls.
gog-workspace
Use the gog CLI for Google Workspace tasks across Gmail, Calendar, Drive, Docs, Sheets, Contacts, and related services. Use when the user asks to check email, search Gmail, inspect calendar events, find Drive files, read Docs or Sheets, or manage Google Workspace data through gog.
wecomcli-sheet
A tool for managing WeCom online spreadsheets, including spreadsheet files, data, and subtables. WeCom is an enterprise collaboration platform.
gog
Google Workspace CLI for Gmail, Calendar, Drive, Contacts, Sheets, and Docs.