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 navikt/copilot --skill terse-modegit clone --depth 1 https://github.com/navikt/copilotWrote 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/navikt/copilot/terse-mode)<a href="https://agentmods.dev/skills/navikt/copilot/terse-mode"><img src="https://agentmods.dev/badge/skills/navikt/copilot/terse-mode/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/navikt/copilot/terse-mode"><img src="https://agentmods.dev/badge/skills/navikt/copilot/terse-mode.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 | $0.00037 | $0.00274 |
| Opus 5 | $0.00018 | $0.00137 |
| Sonnet 5 | $0.00007 | $0.00055 |
| Haiku 4.5 | $0.00004 | $0.00027 |
Grade A, and why
terse-mode 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 5d 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.
What it actually says
Terse Mode
The compact-style rules (drop filler, politeness and hedging; keep code, error strings and technical terms exact; auto-clarity for security warnings, irreversible actions and multi-step sequences) are always applied via output-style.instructions.md. This skill sets the intensity on top of them, and the normal and ultra levels add compression that is not on by default.
Intensity levels
| Level | Description |
|---|---|
| lett | No filler/hedging. Keep articles + full sentences. Professional but tight |
| normal | Drop articles, fragments OK, short synonyms. Default |
| ultra | Abbreviate prose words (DB/auth/config/req/res/fn/impl), arrows for causality (X → Y) |
Default: normal. Switch with: "lett modus", "ultra modus", or "normal modus". Level persists until changed or the session ends.
ultra modus
→ Inline obj-prop → ny ref → re-render. `useMemo`.
What ships with it
1 file 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.
- 5d ago Changed · -47 lines 24608927791e
- 9d ago First seen · 72 lines · 37 tokens per session scan A 26ec6b397bdd
terse-mode is a skill published in the GitHub repository navikt/copilot (54 stars, last pushed today), licensed MIT. It adds 37 tokens to every session and 274 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 2026-08-30.
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