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 terrylica/cc-skills --skill mql5-indicator-patternsgit clone --depth 1 https://github.com/terrylica/cc-skillsWrote 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/terrylica/cc-skills/mql5-indicator-patterns)<a href="https://agentmods.dev/skills/terrylica/cc-skills/mql5-indicator-patterns"><img src="https://agentmods.dev/badge/skills/terrylica/cc-skills/mql5-indicator-patterns/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/terrylica/cc-skills/mql5-indicator-patterns"><img src="https://agentmods.dev/badge/skills/terrylica/cc-skills/mql5-indicator-patterns.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk pass
- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to high
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- high Rogue Agent · line 115 Skill modifies its own code, configuration, or behavior at runtime. Self-modification enables an agent to escalate privileges, disable safety constraints, or install persistent backdoors.Fix: Prevent the skill from modifying its own code, SKILL.md, or configuration files. Treat skill files as read-only at runtime.
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 | $0.00036 | $0.00987 |
| Opus 5 | $0.00018 | $0.00494 |
| Sonnet 5 | $0.00007 | $0.00197 |
| Haiku 4.5 | $0.00004 | $0.00099 |
Grade A, and why
mql5-indicator-patterns 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 4d 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 — 118 lines — stays where its author put it; the contents beside it link to each section on GitHub.
MQL5 Visual Indicator Patterns
Battle-tested patterns for creating custom MQL5 indicators with proper display, buffer management, and real-time updates.
Self-Evolving Skill: This skill improves through use. If instructions are wrong, parameters drifted, or a workaround was needed — fix this file immediately, don't defer. Only update for real, reproducible issues.
When to Use This Skill
Use this skill when:
- Creating custom MQL5 indicators for MetaTrader 5
- Debugging indicator display or buffer issues
- Setting up OnCalculate with proper warmup handling
- Implementing new bar detection patterns
Quick Reference
Essential Patterns
Display Scale (for small values < 1.0):
IndicatorSetDouble(INDICATOR_MINIMUM, 0.0);
IndicatorSetDouble(INDICATOR_MAXIMUM, 0.1);
Buffer Setup (visible + hidden):
SetIndexBuffer(0, BufVisible, INDICATOR_DATA); // Visible
SetIndexBuffer(1, BufHidden, INDICATOR_CALCULATIONS); // Hidden
New Bar Detection (prevents drift):
static int last_processed_bar = -1;
bool is_new_bar = (i > last_processed_bar);
Warmup Calculation:
int StartCalcPosition = underlying_warmup + own_warmup;
PlotIndexSetInteger(0, PLOT_DRAW_BEGIN, StartCalcPosition);
Common Pitfalls
Blank Display: Set explicit scale (see Display Scale reference)
Rolling Window Drift: Use new bar detection with hidden buffer (see Recalculation reference)
Misaligned Plots: Calculate correct PLOT_DRAW_BEGIN (see Complete Template reference)
Forward-Indexed Arrays: Always set ArraySetAsSeries(buffer, false)
Key Patterns
For production MQL5 indicators:
- Explicit scale for small values (< 1.0 range)
- Hidden buffers for recalculation tracking
- New bar detection prevents rolling window drift
- Static variables maintain state efficiently
- Proper warmup calculation prevents misalignment
- Forward indexing for code clarity
These patterns solve the most common indicator development issues encountered in real-world MT5 development.
What ships with it
6 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.
- 4d ago First seen · 118 lines · 36 tokens per session scan A 5e548b4451e7
mql5-indicator-patterns is a skill published in the GitHub repository terrylica/cc-skills (66 stars, last pushed today), licensed MIT. It adds 36 tokens to every session and 987 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 2026-09-05.
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