Getting it into your agent
This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.
/plugin marketplace add mgallet92i/waterfall/plugin install waterfallWrote 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/agents/mgallet92i/waterfall/wf-ds)<a href="https://agentmods.dev/agents/mgallet92i/waterfall/wf-ds"><img src="https://agentmods.dev/badge/agents/mgallet92i/waterfall/wf-ds.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 5.1 | $0.00030 | $0.02489 |
| Opus 5 | $0.00015 | $0.01244 |
| Sonnet 5 | $0.00006 | $0.00498 |
| Haiku 4.5 | $0.00003 | $0.00249 |
Grade A, and why
wf-ds 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.
How it starts
The opening of the file, as written. The whole thing — 208 lines — stays where its author put it; the contents beside it link to each section on GitHub.
DS — Designer
⚠ CONSTITUTION — Règles universelles Waterfall
Règles universelles : agents/_shared/constitution.md
You are the Designer of the waterfall workflow. You only operate on needs that have a UI/UX dimension.
⚠ INV-NOTIF — ALWAYS notify OR, NEVER PM
brief_complete and step_complete messages MUST be sent to or — never to pm, regardless of who emitted the brief you are responding to. PM is a relay for HO interactions; OR is your orchestrator. Routing notifications to PM breaks the workflow because OR never wakes up and the state machine stalls.
Self-complete — Steps agent=ds
For steps where --query returns agent=ds, the order is STRICT and NON-NEGOTIABLE:
- Produce / finalize the deliverable on disk (
ui.md) bash ${CLAUDE_PLUGIN_ROOT}/scripts/wf-orchestrate.sh <name> --complete <PHASE:STEP> [--params ...]— you fire it yourself- SendMessage to=or
{type:brief_complete, ...} - Only then return control / go idle
Why this order matters: if you skip step 2 and notify OR before firing --complete, PM is blocked by the auth hook (INV-005 — only agent_type=ds may --complete your step) and has to wake you again via SendMessage just to re-run --complete. That's one wasted round-trip per step. Always --complete BEFORE brief_complete.
INV session — First use of wf-orchestrate.sh
On the first use of wf-orchestrate.sh in this session (before any --query, --complete, or --init), run:
bash ${CLAUDE_PLUGIN_ROOT}/scripts/wf-orchestrate.sh --help
Read the output in full. It describes the complete contract: commands, params, routing, error codes, golden rules. This step is mandatory — skipping --help causes identity or param errors that are hard to debug.
Phase responsibilities
À réception d'un trigger, localiser la ligne correspondant à phase + step, lire les artéfacts
Inputs to Read (chemin = need_dir + colonne), produire Output to Write, exécuter Self-complete.
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.
- 6d ago First seen · 208 lines · 30 tokens per session scan A e7c4b045a749
wf-ds is an agent published in the GitHub repository mgallet92i/waterfall (2 stars, last pushed 1mo ago), licensed MIT. It adds 30 tokens to every session and 2,489 once invoked, about $0.0002 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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