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 maxence2997/mx-harness --skill mx-flowgit clone --depth 1 https://github.com/maxence2997/mx-harnessWrote 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/maxence2997/mx-harness/mx-flow)<a href="https://agentmods.dev/skills/maxence2997/mx-harness/mx-flow"><img src="https://agentmods.dev/badge/skills/maxence2997/mx-harness/mx-flow/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/maxence2997/mx-harness/mx-flow"><img src="https://agentmods.dev/badge/skills/maxence2997/mx-harness/mx-flow.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 | $0.00075 | $0.04113 |
| Opus 5.5 | $0.00030 | $0.01645 |
| Sonnet 5.5 | $0.00015 | $0.00823 |
| Haiku 4.5 | $0.00007 | $0.00411 |
Grade A, and why
mx-flow 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 23d 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 — 320 lines — stays where its author put it; the contents beside it link to each section on GitHub.
mx-flow
Trigger
/mx-flow <topic> ← full pipeline: idea to PR
/mx-flow status [name] ← where every feature stands, next command
/mx-flow finish <name> ← post-merge cleanup (read references/finish.md and follow it)
Not this skill when the change is one obvious edit with no design choice — a rename, a constant, a one-file fix. Say so and do it directly (/mx-commit for the commit, /mx-pr if it needs a PR). mx-flow's cost is the spec and the review loop; a change that needs neither should not pay for them.
Non-negotiables
Violating any of these is a workflow failure. They bind every phase and every sub-agent this skill dispatches.
- Worktree before any code edit — before making any code change,
verify the working directory is a git worktree
(
git rev-parse --git-dircontainsworktrees/). If not, STOP and run Phase 4 first. - Iron Law — no production code without a failing test first. Code written before its test exists must be deleted and reimplemented after the test is in place. No exceptions.
- Never weaken a gate to get green — no
--no-verify, no lint suppressions to silence a finding, no deleting/skipping a failing test, no rewriting a RED test to match broken behavior, no relaxed assertions, no widened timeouts. A gate fighting you is a design signal: apply the wrong-direction rubric (doctrine below) — change approach or ask. - Review before verify — do not enter Phase 6 unless mx-team-review
and mx-review-triage have run on the current branch diff at least once
in this session. If unsure, check for a review report in
.mx/<name>/tmp/. - Retry budget — the same task failing verification twice (regardless of approach) → stop retrying. In a harness with sub-agents, escalate to the strongest tier with the full failure trail (what was tried, exact diffs, exact errors); otherwise present that trail to the user with concrete options. Never a third identical attempt. (Small-tier workers get only ONE attempt before escalating — counting rule: mx-doctrine model-dispatch §6.)
What ships with it
8 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.
- 23d ago Changed · -1 lines 52c0e0126587
- 1mo ago Changed · -603 lines · -3 tokens per session 13f41f54f302
- 1mo ago First seen · 924 lines · 78 tokens per session scan A 461699313944
mx-flow is a skill published in the GitHub repository maxence2997/mx-harness (5 stars, last pushed 24d ago), licensed MIT. It adds 75 tokens to every session and 4,113 once invoked, about $0.0003 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 2026-08-31.
Other skills, from other repositories
milestone-runner
Use when asked to "run milestones", "execute EXECUTIONPROMPTS.md", "continue the milestone sequence", "run independent milestones in parallel", "merge the stack", or "reconcile M5" after prior work changes the current design. Not for generating plan files; use plan-prompts. Not for repairing one stack; use stacked-prs.
package-evaluator
Evaluates Claude Code package quality across 6 dimensions for all 7 package types, producing scored audit reports. Triggers on: "evaluate package", "audit agent quality", "score this hook", "package audit", "skill quality check". NOT for LLM prompts, use prompt-lab.
code-refiner
Deep code simplification and refactoring preserving behavior across Python, Go, TypeScript, Rust. Targets complexity, anti-patterns, readability debt. Triggers on: "simplify this code", "refactor for clarity", "reduce complexity", "make this more readable", "tech debt cleanup", "too much nesting".
codebase-advisor
Senior codebase advisor that audits a repository, vets findings, and writes self-contained implementation plans for other agents to execute. Triggers on: "write improvement plans", "create an implementation backlog", "audit and plan fixes", "turn findings into plans", "agent-executable plans", "reconcile plans"…
pr-review
Diff-based PR review across code quality, test coverage, silent failures, type design, and comment quality with severity-ranked findings. Triggers on: "review my PR", "review this code", "check my changes", "audit this PR", "code review". NOT for pre-landing gate, use pre-landing-review.
task-decomposer
Produces phased task boards from feature requests: dependency-mapped work items, parallelization flags, risk flags, edge cases, test matrices. Triggers on: "decompose this feature", "task breakdown with dependencies", "phased implementation plan", "work breakdown structure". NOT for discovering which decisions are…