maps

maps is a skill for Claude Code from diillson/chatcli. It costs 87 tokens per session (709 once invoked), scanned A, original, Apache-2.0.

A location tool built on open map data for turning place names into coordinates and finding places or routes.

In plain words
What is it for?
Geocoding addresses, finding nearby points of interest, calculating routes and distances, reverse-geocoding coordinates, and looking up time zones.
Why use it?
It avoids needing a paid map account or API key for common location lookups.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Good fit Geocoding addresses, finding nearby points of interest, calculating routes and distances, reverse-geocoding coordinates, and looking up time zones.

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Install with agentmods
npx agentmods add skills/diillson/chatcli/maps
Install

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.

Any agent
npx skills add diillson/chatcli --skill maps
Clone the repo
git clone --depth 1 https://github.com/diillson/chatcli

Made for: Claude Code.

Wrote 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.

agentmods badge for maps

README.md
[![agentmods](https://agentmods.dev/badge/skills/diillson/chatcli/maps/github.svg)](https://agentmods.dev/skills/diillson/chatcli/maps)
Your own site
<a href="https://agentmods.dev/skills/diillson/chatcli/maps"><img src="https://agentmods.dev/badge/skills/diillson/chatcli/maps/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.

agentmods 80×15 button for maps

Your own site · 80×15
<a href="https://agentmods.dev/skills/diillson/chatcli/maps"><img src="https://agentmods.dev/badge/skills/diillson/chatcli/maps.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 87 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 709 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00087 $0.00709
Opus 5.5 $0.00035 $0.00284
Sonnet 5.5 $0.00017 $0.00142
Haiku 4.5 $0.00009 $0.00071

Measured 1mo ago against content hash 0a35425e2a5e, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

maps scanned grade A with 1 finding 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

All endpoints are plain HTTP, so `curl` (via `@coder exec`/Bash) or `@webfetch` works on any OS.
pkg/persona/builtin/skills/maps/SKILL.md · 71 lines

What it actually says

Maps

Free, keyless location intelligence over open data — no Google Maps key, no signup. All endpoints are plain HTTP, so curl (via @coder exec/Bash) or @webfetch works on any OS.

Geocode (place name → coordinates)

Nominatim (set a real User-Agent — it's required by their policy):

curl -s "https://nominatim.openstreetmap.org/search?q=Eiffel+Tower&format=json&limit=1" \
  -H "User-Agent: chatcli/1.0"

Read lat/lon/display_name from the first result.

Reverse geocode (coordinate → address)

A Telegram/WhatsApp location pin gives you lat/lon directly:

curl -s "https://nominatim.openstreetmap.org/reverse?lat=48.8584&lon=2.2945&format=json" \
  -H "User-Agent: chatcli/1.0"

Nearby points of interest (Overpass)

Find cafes within 800 m of a point:

curl -s "https://overpass-api.de/api/interpreter" --data-urlencode \
  'data=[out:json];node["amenity"="cafe"](around:800,48.8584,2.2945);out 20;'

Swap amenity=cafe for restaurant, pharmacy, atm, fuel, hospital, etc.

Route / distance / ETA (OSRM)

lon,lat;lon,lat order:

curl -s "https://router.project-osrm.org/route/v1/driving/2.2945,48.8584;2.3522,48.8566?overview=false"

Read routes[0].distance (meters) and routes[0].duration (seconds). Use walking/cycling profiles too.

Timezone / local time

curl -s "https://timeapi.io/api/Time/current/coordinate?latitude=48.85&longitude=2.29"

Rules

  • Always send a User-Agent header to Nominatim/OSRM; they rate-limit anonymous traffic.
  • Convert meters→km and seconds→min for the user; state the travel mode.
  • These are public services — for heavy use, point the user at a self-hosted Nominatim/OSRM.
Changes

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.

  1. 1mo ago First seen · 71 lines · 87 tokens per session scan A 0a35425e2a5e

Subscribe to this mod's changes

maps is a skill published in the GitHub repository diillson/chatcli (93 stars, last pushed today), licensed Apache-2.0. It adds 87 tokens to every session and 709 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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