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 peteromallet/Arnold --skill select_tournamentgit clone --depth 1 https://github.com/peteromallet/ArnoldWrote 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/peteromallet/arnold/select_tournament)<a href="https://agentmods.dev/skills/peteromallet/arnold/select_tournament"><img src="https://agentmods.dev/badge/skills/peteromallet/arnold/select_tournament/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/peteromallet/arnold/select_tournament"><img src="https://agentmods.dev/badge/skills/peteromallet/arnold/select_tournament.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 | $0.00000 | $0.00453 |
| Opus 5.5 | $0.00000 | $0.00181 |
| Sonnet 5.5 | $0.00000 | $0.00091 |
| Haiku 4.5 | $0.00000 | $0.00045 |
Grade A, and why
select_tournament 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 1mo 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.
What it actually says
select-tournament
Purpose
select-tournament chooses a winner from a candidate set by composing three
Port-bound stages:
score_candidates (fanout) -> pairwise_bracket -> winner
Runtime
select-tournament is a native-first pipeline whose build_pipeline()
returns a projected Pipeline shell with a non-null native_program.
Fresh runs through megaplan run select-tournament ... or
arnold pipelines run select-tournament ... dispatch through the native
runtime. The projected graph shell exists for structural inspection, port
binding, and downstream composition — it does not represent a separate
execution path.
Bridge-milestone caveat
During the M6→M7 transition, the graph-projected shell is derived from the
native declaration via project_graph and remains structurally equivalent
to the native program. Native-born runs resume on native, and corrupt native
cursors fail closed rather than silently degrading. The graph shell is a
reflection, not a fallback — there is no --runtime graph or
--executor graph toggle on fresh runs.
Verdict Semantics
| Stage | Semantics |
|---|---|
score_candidates |
Fans out one scoring step per candidate and joins score artifacts into the candidate_scores Port. |
pairwise_bracket |
Consumes candidate_scores, runs deterministic pairwise elimination, and emits the bracket_result Port. |
winner |
Consumes bracket_result and emits the terminal winner_result Port. |
Port Contract
| Producer | Port | Consumer |
|---|---|---|
score_candidates |
candidate_scores (application/x-select-tournament-candidate-scores+json) |
pairwise_bracket |
pairwise_bracket |
bracket_result (application/x-select-tournament-bracket+json) |
winner |
winner |
winner_result (application/x-select-tournament-winner+json) |
downstream consumers |
All cross-stage data moves through declared Port / PortRef bindings.
What ships with it
4 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.
- 1mo ago First seen · 48 lines · 0 tokens per session scan A 26a94141c120
select_tournament is a skill published in the GitHub repository peteromallet/Arnold (98 stars, last pushed yesterday), licensed Apache-2.0. It costs nothing until one of its globs matches a file; then it loads 453 tokens. 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 2026-09-04.
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