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 rules/ocean-industries-concept-lab/openbridge-webcomponents/readout-componentsgit clone --depth 1 https://github.com/Ocean-Industries-Concept-Lab/openbridge-webcomponentsWrote 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/rules/ocean-industries-concept-lab/openbridge-webcomponents/readout-components)<a href="https://agentmods.dev/rules/ocean-industries-concept-lab/openbridge-webcomponents/readout-components"><img src="https://agentmods.dev/badge/rules/ocean-industries-concept-lab/openbridge-webcomponents/readout-components.svg" alt="Measured on agentmods" 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 | $0.00000 | $0.03311 |
| Opus 5 | $0.00000 | $0.01656 |
| Sonnet 5 | $0.00000 | $0.00662 |
| Haiku 4.5 | $0.00000 | $0.00331 |
Grade A, and why
readout-components 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 — 252 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Readout Components
These instructions apply to the readout composition stack — the primitives that render a value, and the two layout components built on them.
⚠️ IMPORTANT: Four nested layers, one set of invariants
Every readout is the same primitive wrapped twice. A change to a lower layer reaches every layer above it:
obc-textbox components/textbox/ └─ obc-readout-block building-blocks/readout-block/ ├─ obc-readout-list-item navigation-instruments/readout-list-item/ │ └─ obc-readout-list navigation-instruments/readout-list/ └─ obc-readout navigation-instruments/readout/
obc-readoutis the same block in a different layout, used mostly inside radial instruments (compass, gauge, pitch-roll, …) viainstrument-readout.ts/center-readout.ts. It is covered bywatch-radial-instruments.mdfor its instrument-embedding concerns, and by this file for the value/format contracts it shares with the list stack.When changing a lower layer, verify the layer above it:
obc-textbox— sizing/cap-height/length-slot changes affect every readout, plus non-readout consumers.obc-readout-block— owns formatting, hinted zeros, the reserver and the degree column. Both layout components render it.obc-readout-list-item/obc-readout— layout siblings over the same options API; behavioural changes usually belong in both, or inreadout-shared.ts.obc-readout-list— computes shared reservers across rows and writes them back onto each row.
Where logic lives
| Concern | Home | Notes |
|---|---|---|
Cap-height box, length-slot width reserve, tabular nums |
obc-textbox |
Display primitive; no readout knowledge |
Number formatting, hinted zeros, degree, reserver, off |
obc-readout-block |
The only place a value becomes text |
| Value/format contracts, pure helpers | readout-formatters.ts |
No imports — safe for every layer |
| Behaviour shared by the two layouts | readout-shared.ts |
Setpoint compare, size mapping, data-quality classes |
| Cross-row column alignment | obc-readout-list |
Owns and overwrites the rows' reservers |
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 · 252 lines · 0 tokens per session scan A 93d82902eccd
readout-components is a cursor rule published in the GitHub repository Ocean-Industries-Concept-Lab/openbridge-webcomponents (91 stars, last pushed today), licensed Apache-2.0. It costs nothing until one of its globs matches a file; then it loads 3,311 tokens. 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.
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