A routing service that calculates travel routes between GPS coordinates for cars, bicycles, and walking. It can also turn place names into coordinates using OpenStreetMap data.

Use it as a Python library or command-line tool to calculate distance and travel time, format readable route descriptions, or find coordinates for a named place.

It removes the need to implement route calculation and place-name lookup yourself.

routing — Skill for Claude Code and Codex by ellmos-ai/bach

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 ellmos-ai/bach --skill routing

Clone the repo

git clone --depth 1 https://github.com/ellmos-ai/bach

Made for: Claude Code, Codex.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/ellmos-ai/bach/routing/github.svg)](https://agentmods.dev/skills/ellmos-ai/bach/routing)

Your own site

<a href="https://agentmods.dev/skills/ellmos-ai/bach/routing"><img src="https://agentmods.dev/badge/skills/ellmos-ai/bach/routing/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/ellmos-ai/bach/routing"><img src="https://agentmods.dev/badge/skills/ellmos-ai/bach/routing.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 27 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 634 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00027	$0.00634
Opus 5.5	$0.00011	$0.00254
Sonnet 5.5	$0.00005	$0.00127
Haiku 4.5	$0.00003	$0.00063

Measured 1mo ago against content hash f324c90ea26b, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

routing 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.

The scan reads SKILL.md. This mod also ships 2 executable files (__init__.py, routing_service.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

system/hub/_services/routing/SKILL.md · 72 lines

What it actually says

BACH Routing Service

Version: 1.0 Autor: BACH System Datum: 2026-02-18 API-Key: Nicht erforderlich (OSRM public, Nominatim)

Beschreibung

Berechnet Routen zwischen GPS-Koordinaten (Auto, Fahrrad, zu Fuss). Datenquelle: OSRM oeffentliche Instanz (router.project-osrm.org). Geocoding: Nominatim / OpenStreetMap.

Nutzung (Library)

import sys
sys.path.insert(0, str(BACH_DIR))
from hub._services.routing.routing_service import get_route, get_route_text, geocode_place

# Lesbarer String
text = get_route_text(
    start=(53.551, 9.994),
    end=(52.520, 13.405),
    mode="car",
    start_name="Hamburg",
    end_name="Berlin"
)

# Strukturiertes Dict
result = get_route(start=(53.551, 9.994), end=(52.520, 13.405), mode="car")
# -> {"distance_km": 64.2, "duration_str": "1h 1min", ...}

# Ortsname -> Koordinaten
coords = geocode_place("Freiburg im Breisgau")
# -> (47.9957839, 7.8493949)

Nutzung (CLI)

python routing_service.py <start_lat> <start_lon> <end_lat> <end_lon> [mode]
python routing_service.py 47.761 8.079 47.994 7.849 car
python routing_service.py 47.761 8.079 47.994 7.849 bike

Routing-Modi

Modus	Bedeutung
`car`	Auto (Standard)
`bike`	Fahrrad
`foot`	Zu Fuss

Rueckgabefelder (get_route)

distance_km – Distanz in km
duration_min – Fahrzeit in Minuten
duration_str – Lesbare Fahrzeit (z.B. "1h 5min")
mode_label – Modus auf Deutsch ("Auto", "Fahrrad", ...)
mode_icon – Emoji (🚗, 🚲, 🚶)

Integration

Telegram Bridge: Nutzer sendet GPS-Pin, dann z.B. "Route nach Freiburg"
Claude ermittelt Ziel-Koordinaten via geocode_place() und ruft routing_service.py auf
Empfohlene Nutzung in Claude: via Bash-Tool als Subprocess

Files

What ships with it

2 files 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.

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.

1mo ago Changed · +10 lines · +27 tokens per session f324c90ea26b
1mo ago First seen · 62 lines · 0 tokens per session scan A 5394d15e9a51

Subscribe to this mod's changes

routing is a skill published in the GitHub repository ellmos-ai/bach (8 stars, last pushed today), licensed MIT. It adds 27 tokens to every session and 634 once invoked, about $0.0001 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 2026-08-31.

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