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 rjkaes/trueline-mcp --skill trueline-workflowgit clone --depth 1 https://github.com/rjkaes/trueline-mcpWrote 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/rjkaes/trueline-mcp/trueline-workflow)<a href="https://agentmods.dev/skills/rjkaes/trueline-mcp/trueline-workflow"><img src="https://agentmods.dev/badge/skills/rjkaes/trueline-mcp/trueline-workflow/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/rjkaes/trueline-mcp/trueline-workflow"><img src="https://agentmods.dev/badge/skills/rjkaes/trueline-mcp/trueline-workflow.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00095 | $0.01430 |
| Opus 5 | $0.00048 | $0.00715 |
| Sonnet 5 | $0.00019 | $0.00286 |
| Haiku 4.5 | $0.00010 | $0.00143 |
Grade A, and why
trueline-workflow 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 11d 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 — 122 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Trueline Workflow
Trueline MCP tools replace built-in Read/Edit/Grep with hash-verified, streaming, ref-based equivalents. Catches hallucinated edits, cuts tokens. Use in right order.
CLI vs MCP
The same six tools are also available as a standalone trueline shell binary (at bin/trueline in the repo), useful for shell scripts, CI pipelines, and git hooks where no MCP-aware agent is running. The same hash-verification guarantees apply.
trueline outline <paths...>
trueline read <paths...> [--ranges 10-20]
trueline search <pattern> <paths...> [-i] [-r] [--multiline] [-C N]
trueline edit <path> --edits @file|-|<flat flags>
trueline verify <path> --refs ...
trueline changes [paths...] # alias: diff
Every subcommand accepts --help/-h. Pass --json on any subcommand for {ok, result} machine-readable output. Exit codes: 0 ok, 1 search no match, 2 tool error, 3 usage error.
Never pipe trueline read/trueline search through head, tail, sed, grep, or any filter that drops lines. The ref checksum (e.g. ref: ab10-cd11/efghij) is printed at the end of the output. Truncating it loses the ref, which makes trueline_edit unusable — there is nothing valid to pass as ref. Read the full output; scope it with --ranges (CLI) or path:start-end (MCP) instead of piping.
Use MCP tools (this skill) for in-agent file work. Use the CLI for anything outside an agent context.
Tool cheat sheet
| Tool | Use when | Why |
|---|---|---|
trueline_outline |
First look, any file | ~10-20 lines vs hundreds |
trueline_search |
Know target string/symbol | Lines with hash prefixes + refs, one call |
trueline_read |
Need exact edit context | Per-line hashes + checksums; globs and path:range |
trueline_edit |
All edits | Hash-verified, atomic; built-in Edit blocked by hook |
trueline_verify |
Refs held across turns | Checks staleness without re-read |
trueline_changes |
Review vs git | Symbol-level semantic diff |
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.
- 11d ago First seen · 122 lines · 95 tokens per session scan A b9a1f772d199
trueline-workflow is a skill published in the GitHub repository rjkaes/trueline-mcp (34 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 95 tokens to every session and 1,430 once invoked, about $0.0005 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 2026-08-30.
Other skills, from other repositories
base
Universal coding patterns, constraints, TDD workflow, atomic todos.
session-management
Context preservation, tiered summarization, resumability.
context-shunt
Offload large / multi-file reads to a cheap worker model so raw files never enter Claude's context (token savings).
memstack-automation-n8n-workflow-builder
Use this skill when the user says 'n8n workflow', 'build a workflow', 'automation workflow', 'connect services', or needs visual workflow design with node mapping, data transformations, and error handling for n8n. Do NOT use for standalone webhook endpoints or cron jobs.
memstack-automation-cron-scheduler
Use this skill when the user says 'cron job', 'scheduled task', 'run every', 'cron expression', 'recurring job', or needs production-grade scheduled jobs with overlap prevention, monitoring, and structured logging. Do NOT use for n8n workflows or event-driven webhooks.
ring:generating-release-guides
Generating an internal Operations-facing update/migration guide from the git diff between two refs, documenting per-change client impact, deploy ordering, monitoring, and rollback notes in English, pt-br, or both. Use when preparing a version release or recording what changed for the Ops team. Runs read-only by…