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 vidhunnan/agentic-skills --skill post-anglesgit clone --depth 1 https://github.com/vidhunnan/agentic-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/vidhunnan/agentic-skills/post-angles)<a href="https://agentmods.dev/skills/vidhunnan/agentic-skills/post-angles"><img src="https://agentmods.dev/badge/skills/vidhunnan/agentic-skills/post-angles.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 5.1 | $0.00110 | $0.01866 |
| Opus 5 | $0.00055 | $0.00933 |
| Sonnet 5 | $0.00022 | $0.00373 |
| Haiku 4.5 | $0.00011 | $0.00187 |
Grade A, and why
post-angles 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 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.
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 — 168 lines — stays where its author put it; the contents beside it link to each section on GitHub.
post-angles
Answers the question a full backlog does not: what is worth a post this week, and to whom.
Having material is not the same as knowing what to say about it. Ten typed items and thirty commits do not produce a post, because the angle is a claim about a reader and the record only holds claims about the work. This is what stops people building in public: sitting down with a complete record, finding nothing that feels postable, and closing the tab. The material was there. The angle was missing.
The opposite failure matters as much and is the one a model will commit automatically. Asked for post ideas, it will always produce four — including in a week where nothing happened. A tool that cannot say nothing here yet is a tool for posting about nothing, and it poisons every other output in the family, because after the third invented angle nobody trusts the sourced ones either.
Three rules govern this skill:
- It can decline, and declining is a designed output, not an error path.
- It proposes and never ranks. No angle is presented as the best one, and none is scored. The user picks.
- It never estimates performance. No predicted reach, no "this will do well", no best-time-to-post. There is no evidence for any of it, and inventing it here would contaminate a skill whose whole value is that its claims are checkable.
Instructions
Step 0 — Detect your surface
Using Bash availability:
- Claude Code — Bash works and there's a real filesystem. Full flow.
- Claude.ai — no filesystem. Work from the conversation, and say plainly that you cannot check against prior posts, so a repeat is possible. Never claim a record you cannot read. Don't error.
Step 1 — Resolve the sources
- The backlog —
posts/material/, resolved the waypost-exportresolves it: a CLAUDE.md declared path, then an existing folder, then canon. - The record —
changelog/,docs/decisions/, the explorations tier,handoff/. - What has already been said —
posts/*.md.
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.
- 8d ago First seen · 168 lines · 110 tokens per session scan A d908b3f90d93
post-angles is a skill published in the GitHub repository vidhunnan/agentic-skills (2 stars, last pushed 2d ago), licensed MIT. It adds 110 tokens to every session and 1,866 once invoked, about $0.0006 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 2026-08-31.
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