btw

btw is a skill for Claude Code from jamesyang124/agent-skills. It costs 66 tokens per session (925 once invoked), scanned A, original, MIT.

A checkpoint tool for Graphify, a code knowledge graph that records files, symbols, and their relationships. It appends a dated summary of the graph to KNOWLEDGE_SUMMARY.md.

In plain words
What is it for?
Use it after building or updating a Graphify graph, before a major change, or when you want a reference record of the project's known code structure.
Why use it?
It keeps a history of what the project knowledge graph contained at different points in time. Because entries are appended, earlier snapshots are not replaced.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Good fit Use it after building or updating a Graphify graph, before a major…

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Install with agentmods
npx agentmods add skills/jamesyang124/agent-skills/btw
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 jamesyang124/agent-skills --skill btw
Clone the repo
git clone --depth 1 https://github.com/jamesyang124/agent-skills

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 btw

README.md
[![agentmods](https://agentmods.dev/badge/skills/jamesyang124/agent-skills/btw.svg)](https://agentmods.dev/skills/jamesyang124/agent-skills/btw)
Your own site
<a href="https://agentmods.dev/skills/jamesyang124/agent-skills/btw"><img src="https://agentmods.dev/badge/skills/jamesyang124/agent-skills/btw.svg" alt="Measured on agentmods" height="20"></a>
Per session 66 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 925 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. 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 $0.00066 $0.00925
Opus 5 $0.00033 $0.00463
Sonnet 5 $0.00013 $0.00185
Haiku 4.5 $0.00007 $0.00093

Measured 6d ago against content hash ec00d3e1f760, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

btw 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.

.agent-settings/skills/knowledge-graph/btw/SKILL.md · 127 lines

How it starts

The opening of the file, as written. The whole thing — 127 lines — stays where its author put it; the contents beside it link to each section on GitHub.

btw

Reads the current graphify knowledge graph and appends a timestamped snapshot to KNOWLEDGE_SUMMARY.md. All entries stack — the file is append-only and never deduplicated.

When to Use

After /graphify-monitor has built a knowledge graph and you want to capture the current state as a reference point. Call it whenever you want to record what the graph knows — before a big change, after an interesting discovery, or as a periodic checkpoint.


Steps

Step 1: Locate the project root

git rev-parse --show-toplevel 2>/dev/null || pwd

Store as PROJECT_ROOT.

Step 2: Verify the graph exists

ls "$PROJECT_ROOT/graphify-out/graph.json"

If missing: tell the user "graphify-out/graph.json not found. Run /graphify-monitor first to build the knowledge graph." Then stop.

Step 3: Extract graph summary

Read $PROJECT_ROOT/graphify-out/graph.json and extract:

  • metadata.files — number of files indexed
  • metadata.nodes — number of symbols
  • metadata.edges — number of relationships

If metadata.nodes > 0, run a broad symbol query to get a sample:

graphify query "$PROJECT_ROOT/graphify-out/graph.json" "." 2>/dev/null | head -50

If the command fails or returns nothing, set SYMBOL_SAMPLE to (no symbols indexed for this project's file types).

Store the result as SYMBOL_SAMPLE.

Step 4: Get a UTC timestamp

date -u +"%Y-%m-%dT%H:%M:%SZ"

Store as TIMESTAMP.

Step 5: Format the entry

Construct the entry exactly as follows:


---

## Knowledge Snapshot — [TIMESTAMP]

**Files indexed:** [metadata.files]
**Symbols:** [metadata.nodes]
**Relationships:** [metadata.edges]

### Symbol Sample

[SYMBOL_SAMPLE]

Step 6: Write to KNOWLEDGE_SUMMARY.md

If $PROJECT_ROOT/KNOWLEDGE_SUMMARY.md does not exist: Create the file with this content:

# Knowledge Summary

Chronological record of graphify knowledge graph snapshots.
Each entry captures the symbol/relationship counts and a sample of discovered symbols at that point in time.

---

## Knowledge Snapshot — [TIMESTAMP]

**Files indexed:** [metadata.files]
**Symbols:** [metadata.nodes]
**Relationships:** [metadata.edges]

### Symbol Sample

[SYMBOL_SAMPLE]

Read the full file on GitHub · 127 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. 6d ago First seen · 127 lines · 66 tokens per session scan A ec00d3e1f760

Subscribe to this mod's changes

btw is a skill published in the GitHub repository jamesyang124/agent-skills (2 stars, last pushed 1mo ago), licensed MIT. It adds 66 tokens to every session and 925 once invoked, about $0.0003 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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