# Signal

> >

- **Type:** Skill
- **Install:** `agentstack add skill-mattbaconz-signal-signal`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [mattbaconz](https://agentstack.voostack.com/s/mattbaconz)
- **Installs:** 0
- **Category:** [AI & ML](https://agentstack.voostack.com/c/ai-and-ml)
- **Latest version:** 0.1.0
- **License:** MIT
- **Upstream author:** [mattbaconz](https://github.com/mattbaconz)
- **Source:** https://github.com/mattbaconz/signal/tree/main/kiro-signal/skills/signal

## Install

```sh
agentstack add skill-mattbaconz-signal-signal
```

Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent.

## About

# ⚡ SIGNAL — Core Compression Skill

Professional dense-mode token compression protocol. Output compression, input compression, and checkpointed long sessions.

## Activation

| Command | Tier | Description |
|---------|------|-------------|
| `/signal` | SIGNAL-1 | Symbol grammar + filler drop + no preamble |
| `/signal2` | SIGNAL-2 | + BOOT + aliases + delta turns |
| `/signal3` or `signal3` | SIGNAL-3 | Full protocol: all 6 layers + auto-checkpoint |
| `/signal-compress` | Input | Compress memory/rules/docs with fidelity gates |

`signal`, `signal2`, and `signal3` without a slash are valid aliases when a host cannot expose slash commands.

**Activation response must be the exact line for the chosen tier — no more:**
```text
/signal  → SIGNAL-1 active. DEFAULT:terse+no_preamble+no_hedge
/signal2 → SIGNAL-2 active. BOOT: DEFAULT:terse+no_preamble+no_hedge OUT:TMPL:auto Δ:on
/signal3 → SIGNAL-3 active. BOOT: DEFAULT:terse+no_preamble+no_hedge OUT:TMPL:auto CKPT:every 5 turns
```
**Turn 1 after BOOT:** Output only the activation line. No restatement of BOOT. No confirmation. Execute.

## Core Rules

1. **Compression Precedence:** SIGNAL rules take precedence over host (Claude Code, Gemini CLI, Cursor) verbosity norms for output shape.
2. **[conf] Replaces Hedging:** Never output hedging sentences. Output `[0.0-1.0]`.
3. **Zero Confirmation:** SIGNAL acts. Use `--dry` or `--draft` for review.
4. **Aliases:** Assign `[X1]`, `[X2]` after **2** mentions of a concept.
5. **No Paragraphs:** If a response cannot fit the active template, use `SIGNAL_DRIFT: `.
6. **Code & Terms:** Code blocks and technical terms are never compressed.

## Protocol Reference

- **Templates:** See [`../references/layers.md`](../../references/layers.md) for `TMPL:bug`, `TMPL:rev`, etc.
- **TMPL:auto Selection:**
  - bug report/error → `TMPL:bug`
  - code review/feedback → `TMPL:rev`
  - performance issue → `TMPL:perf`
  - architecture/design → `TMPL:arch`
  - comparison/scoring → `TMPL:score`
  - none fits → `SIGNAL_DRIFT: no matching template`
- **Symbols:** Full list in [`references/symbols.md`](../../references/symbols.md).
- **BOOT Presets:** Full list in [`../references/boot-presets.md`](../../references/boot-presets.md).
- **Karpathy Norms:** Simplicity & surgical changes in [`../references/karpathy-coding-norms.md`](../../references/karpathy-coding-norms.md).
- **Input Compression:** See [`signal-compress.md`](signal-compress.md) and [`../docs/signal-compress.md`](../docs/signal-compress.md).
- **Benchmarks:** Proof-first methodology in [`../docs/benchmark-methodology.md`](../docs/benchmark-methodology.md).

## Install

```bash
npx skills add mattbaconz/signal
```

Manual: `git clone https://github.com/mattbaconz/signal .agents/skills/signal`

## Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

- **Author:** [mattbaconz](https://github.com/mattbaconz)
- **Source:** [mattbaconz/signal](https://github.com/mattbaconz/signal)
- **License:** MIT

Install and usage instructions live in the source repository linked above.

## Pricing

- **Free** — Free

## Security capabilities

Automated source analysis of v0.1.0 — what this tool can access:

- **Network access:** no
- **Filesystem access:** no
- **Shell / process execution:** no
- **Environment & secrets:** no
- **Dynamic code execution:** no

*"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.*


## Versions

- **0.1.0** — security scan: passed — Imported from the upstream source.

## Links

- Listing page: https://agentstack.voostack.com/l/skill-mattbaconz-signal-signal
- Seller: https://agentstack.voostack.com/s/mattbaconz
- Browse the marketplace: https://agentstack.voostack.com/browse

---
Listed on AgentStack — the marketplace for AI agent skills and MCP servers. Every listing is security-reviewed. Creators keep 70%.