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/b1rdmania/ghostclaw/add-slacknpx skills add b1rdmania/ghostclaw --skill add-slackgit clone --depth 1 https://github.com/b1rdmania/ghostclawWrote 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/b1rdmania/ghostclaw/add-slack)<a href="https://agentmods.dev/skills/b1rdmania/ghostclaw/add-slack"><img src="https://agentmods.dev/badge/skills/b1rdmania/ghostclaw/add-slack.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 | $0.00029 | $0.02125 |
| Opus 5 | $0.00015 | $0.01063 |
| Sonnet 5 | $0.00006 | $0.00425 |
| Haiku 4.5 | $0.00003 | $0.00213 |
Grade A, and why
add-slack 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 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
- Via API: `curl -s -H "Authorization: Bearer $SLACK_BOT_TOKEN" "https://slack.com/api/conversations.list" | jq '.channels[] | {id, name}'` Copies of this mod
1 near-identical copy found in the catalogue:
- add-slack — 94% identical, 18 lines differ
How it starts
The opening of the file, as written. The whole thing — 228 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Add Slack Channel
This skill adds Slack support to GhostClaw using the skills engine for deterministic code changes, then walks through interactive setup.
Phase 1: Pre-flight
Check if already applied
Read .ghostclaw/state.yaml. If slack is in applied_skills, skip to Phase 3 (Setup). The code changes are already in place.
Ask the user
-
Mode: Replace WhatsApp or add alongside it?
- Replace → will set
SLACK_ONLY=true - Alongside → both channels active (default)
- Replace → will set
-
Do they already have a Slack app configured? If yes, collect the Bot Token and App Token now. If no, we'll create one in Phase 3.
Phase 2: Apply Code Changes
Run the skills engine to apply this skill's code package. The package files are in this directory alongside this SKILL.md.
Initialize skills system (if needed)
If .ghostclaw/ directory doesn't exist yet:
npx tsx scripts/apply-skill.ts --init
Or call initSkillsSystem() from skills-engine/migrate.ts.
Apply the skill
npx tsx scripts/apply-skill.ts .claude/skills/add-slack
This deterministically:
- Adds
src/channels/slack.ts(SlackChannel class implementing Channel interface) - Adds
src/channels/slack.test.ts(46 unit tests) - Three-way merges Slack support into
src/index.ts(multi-channel support, conditional channel creation) - Three-way merges Slack config into
src/config.ts(SLACK_ONLY export) - Three-way merges updated routing tests into
src/routing.test.ts - Installs the
@slack/boltnpm dependency - Updates
.env.examplewithSLACK_BOT_TOKEN,SLACK_APP_TOKEN, andSLACK_ONLY - Records the application in
.ghostclaw/state.yaml
If the apply reports merge conflicts, read the intent files:
modify/src/index.ts.intent.md— what changed and invariants for index.tsmodify/src/config.ts.intent.md— what changed for config.tsmodify/src/routing.test.ts.intent.md— what changed for routing tests
Validate code changes
npm test
npm run build
What ships with it
11 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.
- add/src/channels/slack.test.ts 24 KB runs code
- add/src/channels/slack.ts 9.0 KB runs code
- manifest.yaml 464 B
- modify/src/config.ts 2.2 KB runs code
- modify/src/config.ts.intent.md 1.2 KB
- modify/src/index.ts 15 KB runs code
- modify/src/index.ts.intent.md 2.8 KB
- modify/src/routing.test.ts 6.0 KB runs code
- modify/src/routing.test.ts.intent.md 809 B
- SLACK_SETUP.md 5.0 KB
- tests/slack.test.ts 6.3 KB runs code
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 · 228 lines · 29 tokens per session scan A 42249aacb2f4
add-slack is a skill published in the GitHub repository b1rdmania/ghostclaw (92 stars, last pushed 4mo ago), licensed MIT. It adds 29 tokens to every session and 2,125 once invoked, about $0.0001 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 2026-08-30.
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