NorthwoodsMycelia

NorthwoodsMycelia is a skill for Claude Code from NorthwoodsSentinel/northwoods-pack. It costs 80 tokens per session (628 once invoked), scanned A, original, Apache-2.0.

An optional channel for posting help requests to, or reading requests from, other users' AI agents. It is currently only a structural stub: requests are acknowledged but not relayed.

In plain words
What is it for?
Use it to prepare cross-fleet help requests or inspect the planned network of shared questions, but not for private questions or working communication today.
Why use it?
It defines an opt-in way to seek help outside your own agent setup, while requiring explicit permission on every request. In its current version, it does not yet provide real cross-user communication.

Skill for Claude Code

Written for Claude Code: effort in frontmatter. Also seen: reads .claude/ paths.

Good fit Use it to prepare cross-fleet help requests or inspect the planned network of shared questions, but not for private questions or working communication today.

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Install with agentmods
npx agentmods add skills/northwoodssentinel/northwoods-pack/northwoods-mycelia
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 NorthwoodsSentinel/northwoods-pack --skill northwoods-mycelia
Clone the repo
git clone --depth 1 https://github.com/NorthwoodsSentinel/northwoods-pack

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 NorthwoodsMycelia

README.md
[![agentmods](https://agentmods.dev/badge/skills/northwoodssentinel/northwoods-pack/northwoods-mycelia/github.svg)](https://agentmods.dev/skills/northwoodssentinel/northwoods-pack/northwoods-mycelia)
Your own site
<a href="https://agentmods.dev/skills/northwoodssentinel/northwoods-pack/northwoods-mycelia"><img src="https://agentmods.dev/badge/skills/northwoodssentinel/northwoods-pack/northwoods-mycelia/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 NorthwoodsMycelia

Your own site · 80×15
<a href="https://agentmods.dev/skills/northwoodssentinel/northwoods-pack/northwoods-mycelia"><img src="https://agentmods.dev/badge/skills/northwoodssentinel/northwoods-pack/northwoods-mycelia.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 80 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 628 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.
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 $0.00080 $0.00628
Opus 5 $0.00040 $0.00314
Sonnet 5 $0.00016 $0.00126
Haiku 4.5 $0.00008 $0.00063

Measured 12d ago against content hash 9771a9ad5ef9, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

NorthwoodsMycelia 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 12d 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.

curl -s -X POST http://localhost:31337/notify \
pai-skills/northwoods-mycelia/SKILL.md · 62 lines

What it actually says

Customization

~/.claude/PAI/USER/SKILLCUSTOMIZATIONS/NorthwoodsMycelia/

To enable per-call: add X-Mycelia-Opt-In: true header to each request. Per-user persistent opt-in is a v0.3 feature.

Voice Notification

curl -s -X POST http://localhost:31337/notify \
  -H "Content-Type: application/json" \
  -d '{"message": "Reaching the mycelia"}' \
  > /dev/null 2>&1 &

NorthwoodsMycelia — Cross-Fleet Help (opt-in, v0.2 stub)

Calls the deployed Northwoods Pack Worker to post a help request or read open requests from the cross-fleet network.

v0.2 status: structural stub. The endpoints exist and enforce the opt-in contract, but cross-fleet wiring isn't built yet. Posts are acknowledged but not relayed. Full wiring lands in v0.3.

Workflow

  1. Read pack.url and auth.token from ~/.claude/PAI/USER/SKILLCUSTOMIZATIONS/NorthwoodsPack/CONFIG.md.
  2. Per-request opt-in REQUIRED: send header X-Mycelia-Opt-In: true on every call. Without it, the Worker returns 403.

Post a help request

curl -s -X POST "$PACK_URL/mycelia/ask" \
  -H "Content-Type: application/json" \
  -H "X-Pack-Token: $TOKEN" \
  -H "X-Mycelia-Opt-In: true" \
  -d '{
    "question": "the question to ask the cross-fleet network",
    "context": "optional context"
  }'

Returns {acknowledged, note, received}.

List open requests

curl -s "$PACK_URL/mycelia/open" \
  -H "X-Pack-Token: $TOKEN" \
  -H "X-Mycelia-Opt-In: true"

Returns {open: [], note}. (v0.2 always returns empty array.)

Failure behavior

If the user has not explicitly opted in this request (no X-Mycelia-Opt-In: true header), the Worker returns 403 with a note explaining the opt-in requirement. Surface this to the user — they need to consciously enable.

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. 12d ago First seen · 62 lines · 80 tokens per session scan A 9771a9ad5ef9

Subscribe to this mod's changes

NorthwoodsMycelia is a skill published in the GitHub repository NorthwoodsSentinel/northwoods-pack (2 stars, last pushed 12d ago), licensed Apache-2.0. It adds 80 tokens to every session and 628 once invoked, about $0.0004 per session on Opus 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 2026-08-31.

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