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/dynos-fit/dynos-work/executenpx skills add dynos-fit/dynos-work --skill executegit clone --depth 1 https://github.com/dynos-fit/dynos-workWhat 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 | $0.00046 | $0.06091 |
| Opus 5 | $0.00023 | $0.03045 |
| Sonnet 5 | $0.00009 | $0.01218 |
| Haiku 4.5 | $0.00005 | $0.00609 |
Grade A, and why
execute scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 397 lines — stays where its author put it; the contents beside it link to each section on GitHub.
dynos-work: Execute Skill
Manages the parallel execution of the implementation plan via the execution graph. Handles dependency ordering, executor spawning, and final integration.
Command Funnel (applies to every command in this skill)
Every deterministic step below runs through the plugin CLI. Resolve it once at the start of the skill and substitute the ABSOLUTE path literally into each command you run (permission prefix-matching operates on literal command text):
PLUGIN_ROOT="${CODEX_PLUGIN_ROOT:-${CLAUDE_PLUGIN_ROOT:-}}"
if [ -z "$PLUGIN_ROOT" ]; then
echo "Set CODEX_PLUGIN_ROOT or CLAUDE_PLUGIN_ROOT to the dynos-work plugin root." >&2
exit 2
fi
DYNOS="${PLUGIN_ROOT}/bin/dynos" # resolve once; use the absolute path in every command
"$DYNOS" ctl <subcommand> wraps hooks/ctl.py; "$DYNOS" hook <script> ... wraps helper scripts (router, lib_tokens, build_prompt_context, ...) with PYTHONPATH handled internally. A permissions-ON user can allow the single <plugin-root>/bin/dynos prefix once instead of approving every call.
JSON payloads (classification, execution-graph, repair-log) are piped to the ctl wrapper over stdin with --from - and a heredoc — NEVER staged at /tmp or any raw filesystem path (the write policy denies those, by design). Temp files, when genuinely needed, belong in .dynos/task-{id}/_scratch/.
Ruthlessness Standard
- No silent shortcuts.
- No executor prompt may omit learned rules or prevention rules when they exist.
- A segment is not done because code was written; it is done when the required behavior is proven.
- If verification is weak, the segment is weak.
- If a segment can pass with shallow evidence, the prompt is too soft.
- No executor gets to hide behind “close enough.”
What you do
Step 0 — Contract validation
Validate that all required inputs from the start skill are present:
"$DYNOS" ctl validate-contract --skill execute --task-dir .dynos/task-{id}
If validation fails with missing required inputs, print the errors and stop. Do not proceed with execution.
What ships with it
1 file 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.
- 2d ago First seen · 397 lines · 46 tokens per session scan A 2060c31e6ae4
execute is a skill published in the GitHub repository dynos-fit/dynos-work (2 stars, last pushed 1mo ago), licensed MIT. It adds 46 tokens to every session and 6,091 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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