Borrowing it
Nothing to install: this file belongs to moberghr/mtk-agent-toolkit. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/moberghr/mtk-agent-toolkit/main/.claude/skills/implement/SKILL.mdgit clone --depth 1 https://github.com/moberghr/mtk-agent-toolkitWrote 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/moberghr/mtk-agent-toolkit/implement)<a href="https://agentmods.dev/skills/moberghr/mtk-agent-toolkit/implement"><img src="https://agentmods.dev/badge/skills/moberghr/mtk-agent-toolkit/implement/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/moberghr/mtk-agent-toolkit/implement"><img src="https://agentmods.dev/badge/skills/moberghr/mtk-agent-toolkit/implement.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 | $0.00017 | $0.06189 |
| Opus 5.5 | $0.00007 | $0.02476 |
| Sonnet 5.5 | $0.00003 | $0.01238 |
| Haiku 4.5 | $0.00002 | $0.00619 |
Grade A, and why
implement 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 8d 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 — 328 lines — stays where its author put it; the contents beside it link to each section on GitHub.
MTK Implement — Full Feature Loop
MTK File Resolution
Resolve MTK skill/reference/script paths per .claude/references/mtk-file-resolution.md unless the router already stated MTK_ROOT=<path> this session; CLAUDE.md, .claude/tech-stack, .claude/rules/, tasks/, docs/, .mtk/ stay project-relative.
The entry point for substantial work. Stack specifics come from the active tech stack skill; the workflow detail lives in the skills each phase names (context-engineering, workflow-artifacts, brainstorming, spec-driven-development, planning-and-task-breakdown, incremental-implementation / subagent-implementation, security-and-hardening, spec-drift-detection, verification-before-completion, code-simplification) and in the implement-* references.
Phase 0: Load Context (Progressive Disclosure)
Before doing anything else:
- Init or resume a workflow artifact (
.claude/skills/workflow-artifacts/SKILL.md).- Resolve the helper once — plugin installs have no project-relative copy, and
CLAUDE_PLUGIN_ROOTis never set in the Bash environment (Claude Code substitutes the braced${CLAUDE_PLUGIN_ROOT}into skill text at load time instead), so a barescripts/workflow-artifact.shfails. Resolve itMTK_HELPER_ROOT-first (a checkout you pin — seeCLAUDE.md), then project, then plugin, and use"$WFA"for everyworkflow-artifact.shcall in this skill:WFA="$([ -n "${MTK_HELPER_ROOT:-}" ] && echo "$MTK_HELPER_ROOT/scripts/workflow-artifact.sh" || ([ -f scripts/workflow-artifact.sh ] && echo scripts/workflow-artifact.sh || echo "${CLAUDE_PLUGIN_ROOT}/scripts/workflow-artifact.sh"))" - Run
"$WFA" list. - If a single active
BUILDworkflow exists for this feature, ask viaAskUserQuestionwhether to resume that uuid or start a new one. - Otherwise prune expired workflows, init, and emit the phase-0 marker in one call — the phase goes in
--data, not as a positional:"$WFA" prune --older-than 30 >/dev/null; MTK_WF_UUID=$("$WFA" init BUILD --goal "<one-line user goal>") && "$WFA" event "$MTK_WF_UUID" phase_started --data '{"phase":"phase-0"}'. Remember the uuid for the rest of the session. - Bookkeeping rides along, never alone. Every later
"$WFA"write in this skill is appended with&&to the command it records (the lint, the checkpoint, the sidecar write) or grouped into one"$WFA" batch "$MTK_WF_UUID" <op> -- <op> …call. A standalone artifact write is a full model turn spent on one line of JSON. Onlyinit,list,read, andverify-sealrun alone.
- Resolve the helper once — plugin installs have no project-relative copy, and
- Follow
.claude/skills/context-engineering/SKILL.md: it resolves the stack for the files in scope (pass a representativechange_manifestpath when the change targets a subtree), loads thetech-stack-{stack}skill, and loads references per phase and perapplyTomatch. If neitherAGENTS.mdnorCLAUDE.mdexists, stop and tell the engineer to run/mtk-setup. Phase 0 itself loads only the stack's coding guidelines andarchitecture-principles.mdif present. - Query lessons for the initial scope (
learnings.sh query --phase implement, elsetasks/lessons.md, resolved from the main worktree). - Output intensity:
--tersereports only decisions, actions, findings and evidence;--verboseadds rationale, alternatives and references consulted; default is brief rationale for non-obvious decisions. - Worktree pre-flight (capture only). Run
git status --porcelainand remember the set of already-modified and untracked paths — the pre-existing dirty set. This is a read-only snapshot, not a gate yet. It feeds two later checks: (a) the spec's dirty-worktree risk step (spec-driven-developmentstep 3b, for out-of-manifest paths), and (b) the Phase 2.9 worktree collision gate (for in-manifest paths — the parallel-session case). Capturing it now, before any edit, is what lets the collision gate tell "already dirty when we started" apart from "dirty because this workflow touched it."
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.
- 8d ago Changed · +2 lines 08d7e0ebb706
- 13d ago Changed · +2 lines 0002325bbd08
- 16d ago Changed · -94 lines c780120bf8d3
- 1mo ago Changed · +2 lines scan B → A 872bf3e400dc
- 1mo ago Changed · +2 lines 29f98a1a57db
- 2mo ago First seen · 414 lines · 17 tokens per session scan B 8ebba485e806
implement is a skill published in the GitHub repository moberghr/mtk-agent-toolkit (9 stars, last pushed 8d ago), licensed MIT. It adds 17 tokens to every session and 6,189 once invoked, about $0.0001 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.
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