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 skills/plastic-labs/cursor-honcho/honcho-setupnpx skills add plastic-labs/cursor-honcho --skill honcho-setupgit clone --depth 1 https://github.com/plastic-labs/cursor-honchoWrote 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/plastic-labs/cursor-honcho/honcho-setup)<a href="https://agentmods.dev/skills/plastic-labs/cursor-honcho/honcho-setup"><img src="https://agentmods.dev/badge/skills/plastic-labs/cursor-honcho/honcho-setup.svg" alt="Measured on agentmods" 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 | $0.00020 | $0.00456 |
| Opus 5 | $0.00010 | $0.00228 |
| Sonnet 5 | $0.00004 | $0.00091 |
| Haiku 4.5 | $0.00002 | $0.00046 |
Grade A, and why
honcho-setup scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 6d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
Honcho Setup
Walk the user through first-time Honcho configuration so persistent memory works in Cursor.
Steps
1. Check current state
Run this command to check if HONCHO_API_KEY is already set:
echo "${HONCHO_API_KEY:+set}"
If the output is set, skip to step 3 (validation). Otherwise continue.
2. Direct user to get an API key
Tell the user:
You need a Honcho API key. Get one for free at https://app.honcho.dev
Once you have it, add this line to your shell config (
~/.zshrcor~/.bashrc):export HONCHO_API_KEY="your-key-here"Then restart Cursor so it picks up the new environment variable.
Wait for the user to confirm they have set the key. If they paste the key directly in chat, warn them not to share API keys in conversation and remind them to set it as an environment variable instead.
3. Validate the API key
Test the connection by running the setup runner. Find the plugin directory first:
HONCHO_PLUGIN="${HONCHO_PLUGIN_DIR:-$HOME/.honcho/plugins/cursor-honcho/plugins/honcho}"
bun run "$HONCHO_PLUGIN/src/skills/setup-runner.ts"
If it succeeds, the key is valid and the config file has been created.
If it fails, help the user troubleshoot:
- Key not set: re-check shell config and restart Cursor
- Authentication error: key may be invalid, get a new one from https://app.honcho.dev
- Network error: check internet connection
- Plugin not found: check that cursor-honcho is installed at
~/.honcho/plugins/cursor-honcho
4. Confirm setup
Tell the user that Honcho is configured and memory will be active on their next session. Suggest they restart Cursor or open a new chat to see the memory context load.
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.
- 6d ago First seen · 58 lines · 20 tokens per session scan A a81645b23c57
honcho-setup is a skill published in the GitHub repository plastic-labs/cursor-honcho (6 stars, last pushed 4d ago), licensed MIT. It adds 20 tokens to every session and 456 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 2026-08-31.
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