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/nilbuild/diffity/diffity-resolve-treenpx skills add nilbuild/diffity --skill diffity-resolve-treegit clone --depth 1 https://github.com/nilbuild/diffityWhat 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 | $0.00020 | $0.00790 |
| Opus 5 | $0.00010 | $0.00395 |
| Sonnet 5 | $0.00004 | $0.00158 |
| Haiku 4.5 | $0.00002 | $0.00079 |
Grade A, and why
diffity-resolve-tree 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 2d 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 — 64 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Diffity Resolve Tree Skill
You are reading open comments left on repository files via the diffity tree browser and resolving them by making the requested code changes.
Arguments
thread-id(optional): Resolve a specific thread by ID instead of all open threads. Example:/diffity-resolve-tree abc123
CLI Reference
{{binary}} agent list [--status open|resolved|dismissed] [--json]
{{binary}} agent comment --file <path> --line <n> [--end-line <n>] --body "<text>"
{{binary}} agent resolve <id> [--summary "<text>"]
{{binary}} agent dismiss <id> [--reason "<text>"]
{{binary}} agent reply <id> --body "<text>"
--file,--line,--bodyare required forcomment--end-linedefaults to--line(single-line comment)<id>accepts full UUID or 8-char prefix
Prerequisites
- Check that
{{binary}}is available: runwhich {{binary}}. If not found, {{install_hint}}. - Check that a tree session exists: run
{{binary}} agent list. If this fails with "No active review session", tell the user to start diffity tree first (e.g.{{binary}} tree).
Instructions
- List open comment threads with full details:
If a{{binary}} agent list --status open --jsonthread-idargument was provided, filter to just that thread. The JSON output includes the full comment body, file path, line numbers, and side for each thread. - If there are no open threads, tell the user there's nothing to resolve.
- For each open thread:
a. Skip general comments (filePath
__general__) — these are summaries, not actionable code changes. b. Skip threads where the last comment is an agent reply that asks the user a question and the user hasn't responded yet — the agent is waiting for user input. c.[question]comments (from the user) — read the question, examine the relevant code, and reply with an answer:
Then resolve the thread with a summary of your answer. d. Comments phrased as questions without an explicit{{binary}} agent reply <thread-id> --body "Your answer here"[question]tag (e.g. "should we add X?" or "can we rename this?") are suggestions — treat them as actionable requests and make the change. e. Read the comment body from the JSON output and understand what change is requested. The comment is anchored to a specific file and line range — read the full file to understand context:- If the comment suggests a code change, refactor, or improvement, make the change.
- If the comment suggests adding documentation, add or update the relevant docs.
- If the comment is genuinely unclear, reply asking for clarification:
{{binary}} agent reply <thread-id> --body "Could you clarify what change you'd like here?"
{{binary}} agent resolve <thread-id> --summary "Fixed: <brief description of what was changed>" - After resolving all applicable threads, run
{{binary}} agent listto confirm status. - Tell the user to check the browser — resolved status will appear within 2 seconds via polling.
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.
- 2d ago First seen · 64 lines · 20 tokens per session scan A 68daf974c7de
diffity-resolve-tree is a skill published in the GitHub repository nilbuild/diffity (762 stars, last pushed 1mo ago), licensed MIT. It adds 20 tokens to every session and 790 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 2026-08-30.
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