about

A command that searches all seven layers of a GDL knowledge base for a topic and groups the results by layer.

In plain words
What is it for?
It helps quickly look up a topic, search a chosen directory, count matches, or exclude selected knowledge layers.
Why use it?
It avoids repeating separate searches across the knowledge base and can narrow results with filters such as regular expressions or specific layers.

Command

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.

agentmods
npx agentmods add commands/greppable/greppable-cc-plugin/about
Clone the repo
git clone --depth 1 https://github.com/greppable/greppable-cc-plugin
Per session 26 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 637 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00026 $0.00637
Opus 5 $0.00013 $0.00318
Sonnet 5 $0.00005 $0.00127
Haiku 4.5 $0.00003 $0.00064

Measured yesterday against content hash 0bb7cac71642, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

about 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 yesterday.

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.

commands/about.md · 69 lines

How it starts

The opening of the file, as written. The whole thing — 69 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Search across all 7 GDL layers for a topic. Returns formatted results grouped by layer.

Usage

/greppable:about TOPIC [directory] [--layer=LAYER] [--exclude-layer=LAYERS] [--summary] [--regex] [--ignore-case]

Implementation

Source the tools and call gdl_about:

source "${CLAUDE_PLUGIN_ROOT}/scripts/gdl-tools.sh"
gdl_about "$TOPIC" "${DIR:-.}" ${SUMMARY:+--summary} ${REGEX:+--regex} ${IGNORE_CASE:+--ignore-case} ${EXCLUDE_LAYER:+--exclude-layer=$EXCLUDE_LAYER}

Arguments

  • TOPIC (required): The search term — literal string by default, regex pattern with --regex
  • directory (optional): Search scope, defaults to current directory
  • --layer=LAYER: Filter to specific layer (gdl, gdls, gdlc, gdla, gdld, gdlm, gdlu)
  • --exclude-layer=LAYERS: Skip comma-separated layers (e.g., --exclude-layer=gdlm,gdlu). Complement of --layer.
  • --summary: Compact output with counts only
  • --regex / -E: Use extended regex instead of literal matching (enables patterns like (auth|security), ^@T.*TOPIC, type:decision)
  • --ignore-case / -i: Case-insensitive search (finds GL_ACCOUNT when searching gl_account)

Progressive Disclosure

  1. First show summary (which layers matched, count per layer)
  2. If user asks for more detail, show full matching records
  3. If user asks about a specific layer, drill into that layer's tool functions

Examples

/greppable:about GL_ACCOUNT
/greppable:about authentication --layer=gdlc
/greppable:about GL_ACCOUNT --summary

Pattern Recipes

# Find entities matching a prefix
/greppable:about 'GL_[A-Z]+' . --regex

# Multi-keyword search (OR)
/greppable:about '(auth|security|access)' . --regex --ignore-case

# Filter to specific record types
/greppable:about '^@T.*Customer' . --regex --layer=gdls

# Find field values across layers
/greppable:about 'type:decision' . --regex --layer=gdlm

# Case-insensitive entity lookup
/greppable:about parser . --ignore-case

# Search everything except memory and diagrams
/greppable:about 'Customer' . --exclude-layer=gdlm,gdld

Read the full file on GitHub · 69 lines

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. yesterday First seen · 69 lines · 26 tokens per session scan A 0bb7cac71642

Subscribe to this mod's changes

about is a command published in the GitHub repository greppable/greppable-cc-plugin (3 stars, last pushed 4mo ago), licensed MIT. It adds 26 tokens to every session and 637 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.