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 skills add promptdriven/pdd --skill pdd-small-changegit clone --depth 1 https://github.com/promptdriven/pddWrote 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/promptdriven/pdd/pdd-small-change)<a href="https://agentmods.dev/skills/promptdriven/pdd/pdd-small-change"><img src="https://agentmods.dev/badge/skills/promptdriven/pdd/pdd-small-change/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/promptdriven/pdd/pdd-small-change"><img src="https://agentmods.dev/badge/skills/promptdriven/pdd/pdd-small-change.svg" alt="Reviewed on agentmods" width="80" 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 5.1 | $0.00053 | $0.00439 |
| Opus 5.5 | $0.00021 | $0.00176 |
| Sonnet 5.5 | $0.00011 | $0.00088 |
| Haiku 4.5 | $0.00005 | $0.00044 |
Grade A, and why
pdd-small-change 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 today.
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.
What it actually says
PDD small change
Use this for a small change with a clear effect that is easy to undo. If the impact grows, suggest pdd-bug or pdd-feature.
Each area is one main chat. Step briefs are in steps/.
- plan: scope → gate: approve
- build: change, verify, formal → gate: pr
Rules
- The main chat coordinates and talks with the person. It does not write code.
- Run each step in a new subagent, never reused, so verify never checks its own code. Give it its full brief at once: the step file and file paths, not the chat history. Then wait for it with one long time-out. Do not send small follow-up messages or use short waits.
- At a gate, show the result, ask the person, and stop. For changes, revise here and ask again.
- Write each link as its full URL (
https://…), never as a linked word. - Before an optional step, ask the person and wait for the answer. In a run, run
<pdd> workflow askfirst. - A person decides expected values. Never change a test to make it pass.
- Never push, open a PR or merge.
In a run (see the first message)
- Each step writes notes to
<run folder>/STEP.mdand commits its code. - When you need the person's answer in the middle of a step, run
<pdd> workflow ask "<question>"first. Then ask it in a plain chat message (never a question dialog such as request_user_input) and end your turn. The person answers in the chat or withpdd workflow changes N "answer". - When the person approves in their own words, run
<pdd> workflow approve N. Never approve for them.
What ships with it
5 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- today First seen · 29 lines · 53 tokens per session scan A d463c339493d
pdd-small-change is a skill published in the GitHub repository promptdriven/pdd (920 stars, last pushed today), licensed MIT. It adds 53 tokens to every session and 439 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-10-28.
Other skills, from other repositories
work
Handle issue/PR work items with worktree isolation. Triggered by "/work [issuelink|description]" to start focused work.
do
Work a SpecWeave increment task by task - claim, implement inside its Files, test, commit, done with evidence - alone, unattended or in lanes, then close. Use for "implement", "next task".
knowledge-shell-process-and-worktree
Shell and Git worktree support for running commands, managing long-lived processes, and giving sessions isolated working directories. A Git worktree is a separate checkout linked to the same repository.
aiox-commit
Create a local conventional commit for AIOX work. Never pushes. Use when: committing, /aiox-commit, or local git commit.
commit
Alias for /aiox-commit. Use when the user runs /commit or mentions commit.
creating-issues-and-pull-requests
Use when creating GitHub pull requests or issues with template compliance. Triggers: 'create a PR', 'open a pull request', 'file an issue', 'create issue'. Also invoked by finishing-a-development-branch. NOT for: deciding whether to merge or PR (use finishing-a-development-branch).