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 poshan0126/dotclaude --skill context-budgetgit clone --depth 1 https://github.com/poshan0126/dotclaudeWrote 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/poshan0126/dotclaude/context-budget)<a href="https://agentmods.dev/skills/poshan0126/dotclaude/context-budget"><img src="https://agentmods.dev/badge/skills/poshan0126/dotclaude/context-budget.svg" alt="Measured on agentmods" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 6 findings, 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 Agent Snooping · line 16 Skill reads from agent configuration directories (.claude/, .codex/, .gemini/). These directories may contain API keys, personal settings, and other credentials that the skill has no legitimate need to access.Fix: Remove all code or instructions that access agent configuration directories (.claude/, .codex/, .gemini/). If configuration values are needed, pass them explicitly as parameters or environment variabl
- high Agent Snooping · line 17 Skill reads from agent configuration directories (.claude/, .codex/, .gemini/). These directories may contain API keys, personal settings, and other credentials that the skill has no legitimate need to access.Fix: Remove all code or instructions that access agent configuration directories (.claude/, .codex/, .gemini/). If configuration values are needed, pass them explicitly as parameters or environment variabl
- high Agent Snooping · line 18 Skill reads from agent configuration directories (.claude/, .codex/, .gemini/). These directories may contain API keys, personal settings, and other credentials that the skill has no legitimate need to access.Fix: Remove all code or instructions that access agent configuration directories (.claude/, .codex/, .gemini/). If configuration values are needed, pass them explicitly as parameters or environment variabl
- medium Agent Snooping · line 17 Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.Fix: Remove all code or instructions that list or read other skills' files or directories. Skills should operate independently; cross-skill access is a privilege escalation.
- medium Data Exfiltration · line 56 Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
- medium Data Exfiltration · line 56 Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
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 | $0.00049 | $0.01401 |
| Opus 5 | $0.00024 | $0.00700 |
| Sonnet 5 | $0.00010 | $0.00280 |
| Haiku 4.5 | $0.00005 | $0.00140 |
Grade C, and why
context-budget scanned grade C with 3 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Reads agent configuration directoriesmediumAgent snooping
.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.
find .claude/rules -name '*.md' -type f 2>/dev/null Enumerates other installed skillsmediumAgent snooping
Other skills' SKILL.md files reveal prompts, capabilities and secrets that should be invisible to peers.
find .claude/skills -name 'SKILL.md' -type f 2>/dev/null Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
tokens=$(curl -s https://api.anthropic.com/v1/messages/count_tokens \ How it starts
The opening of the file, as written. The whole thing — 115 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Estimate the token cost of this project's .claude/ configuration and CLAUDE.md so the user can see exactly which files load every turn versus only when triggered.
Step 1: Discover loadable files
From the project root:
ls CLAUDE.md 2>/dev/null
find .claude/rules -name '*.md' -type f 2>/dev/null
find .claude/skills -name 'SKILL.md' -type f 2>/dev/null
find .claude/agents -name '*.md' -type f 2>/dev/null
[ -f .claude/CLAUDE.md ] && echo "WARN: .claude/CLAUDE.md exists. CLAUDE.md belongs at the project root."
Skip any file under .claude/agents/README.md, .claude/rules/README.md, etc. Those are folder descriptions, not loaded by Claude Code at runtime.
Step 2: Classify rules by frontmatter
For every .md file in .claude/rules/, read the YAML frontmatter (the block between the first two --- lines).
| Frontmatter contains | Classification | Per-turn cost |
|---|---|---|
paths: [...] |
Path-scoped | Loaded only when working near matched files |
No paths: (or no frontmatter) |
Always-loaded | Every turn |
Other categories:
./CLAUDE.md-> always-loaded (by definition)..claude/skills/<name>/SKILL.md-> invoked-only (zero per-turn cost; only loads when the user runs/skill-nameor, ifdisable-model-invocationis unset, when Claude auto-triggers it)..claude/agents/<name>.md-> invoked-only and runs in isolated context (per-invocation cost in its own session, not per-turn cost in the main thread).
Step 3: Count tokens per file
Default mode (no API call): chars-based heuristic. Anthropic documents that English text averages roughly 4 characters per token. Compute:
chars=$(wc -c < "$FILE" | tr -d ' ')
tokens=$((chars / 4))
Note this in the report so the user knows the count is approximate (within roughly 10 to 15 percent of the exact count for typical config text).
--api mode: if $ARGUMENTS contains --api:
if [ -z "$ANTHROPIC_API_KEY" ]; then
echo "ERROR: --api requested but ANTHROPIC_API_KEY is not set. Falling back to heuristic."
else
CONTENT=$(jq -Rs . < "$FILE")
tokens=$(curl -s https://api.anthropic.com/v1/messages/count_tokens \
-H "x-api-key: $ANTHROPIC_API_KEY" \
-H "anthropic-version: 2023-06-01" \
-H "content-type: application/json" \
-d "{\"model\":\"claude-sonnet-4-6\",\"messages\":[{\"role\":\"user\",\"content\":$CONTENT}]}" \
| jq -r '.input_tokens')
fi
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 First seen · 115 lines · 49 tokens per session scan C 84230afc47cc
context-budget is a skill published in the GitHub repository poshan0126/dotclaude (860 stars, last pushed 11d ago), licensed MIT. It adds 49 tokens to every session and 1,401 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it C with 3 findings (reads agent configuration directories, enumerates other installed skills, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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