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/dinhanhthi/coding-friend/cf-scannpx skills add dinhanhthi/coding-friend --skill cf-scangit clone --depth 1 https://github.com/dinhanhthi/coding-friendWrote 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/dinhanhthi/coding-friend/cf-scan)<a href="https://agentmods.dev/skills/dinhanhthi/coding-friend/cf-scan"><img src="https://agentmods.dev/badge/skills/dinhanhthi/coding-friend/cf-scan.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 | $0.00055 | $0.03207 |
| Opus 5 | $0.00028 | $0.01604 |
| Sonnet 5 | $0.00011 | $0.00641 |
| Haiku 4.5 | $0.00006 | $0.00321 |
Grade A, and why
cf-scan 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 5d 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.
How it starts
The opening of the file, as written. The whole thing — 313 lines — stays where its author put it; the contents beside it link to each section on GitHub.
/cf-scan
CLI Requirement: OPTIONAL — Uses the memory MCP from
coding-friend-clifor fast indexed search and storage. Without the CLI: falls back to grep overdocs/memory/and direct file writes. Full functionality preserved, slower memory recall. See CLI requirements.
Scan the project and bootstrap the memory system. User input: $ARGUMENTS
Purpose
New projects start with empty memory. This skill scans the codebase, extracts structured knowledge (architecture, conventions, tech stack, features, infrastructure), and stores it as memories. Safe to run multiple times — existing memories are updated, not duplicated.
Folder
Output goes to {docsDir}/memory/ (default: docs/memory/). Check .coding-friend/config.json for custom docsDir if it exists.
IMPORTANT — path resolution:
- Use
MAIN_REPO_ROOTfrom the SessionStart bootstrap context (injected via session-init.sh). If absent, fall back to runningpwdfor$CWDand use$CWDasMAIN_REPO_ROOT. - Read config from
CF_CONFIG_FILE(=$MAIN_REPO_ROOT/.coding-friend/config.json) — do NOT search sub-folders - Use
CF_DOCS_ROOTas the docs base dir (=$MAIN_REPO_ROOT/{docsDir}wheredocsDircomes from config, defaultdocs) - Always resolve
file_pathas an absolute path:{CF_DOCS_ROOT}/memory/{category}/{name}.md - Never use relative paths in write specs — they may resolve incorrectly when the working directory contains nested git repos
Workflow
Step 0: Custom Guide
Custom guide — auto-loaded below (if the raw command shows instead of its output, run it yourself):
bash "<plugin-root>/lib/load-custom-guide.sh" cf-scan
If output is not empty, integrate returned sections: ## Before → before first step, ## Rules → apply throughout, ## After → after final step.
Step 0.5: Context Budget Check
Before proceeding, assess context budget:
- If context is above 50%, prefer selective reads (Read with offset/limit) over full file reads
- Limit cf-explorer exploration depth — map structure broadly but only deep-read files directly relevant to memory creation
- If context is above 70%, warn the user that scan quality may degrade and suggest running in a fresh session
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.
- 5d ago First seen · 313 lines · 55 tokens per session scan A 61e7ee084f09
cf-scan is a skill published in the GitHub repository dinhanhthi/coding-friend (3 stars, last pushed yesterday), licensed MIT. It adds 55 tokens to every session and 3,207 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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Recall relevant long-term memories on demand. Given a topic or question, judges relevance from pre-loaded metadata, loads only relevant files, and returns a concise summary to the main agent.
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