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 instructions/alexei-led/coding-posture/agents-mdgit clone --depth 1 https://github.com/alexei-led/coding-postureWhat 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 | $0.00241 | $0.00241 |
| Opus 5 | $0.00120 | $0.00120 |
| Sonnet 5 | $0.00048 | $0.00048 |
| Haiku 4.5 | $0.00024 | $0.00024 |
Grade A, and why
coding-posture AGENTS.md 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 2d 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
Coding Posture
- The product is one file:
skills/coding-posture/SKILL.md. No engine, no selection code. - Modes are procedural checklists, not personas. Keep them aimed at situations models reliably get wrong.
- A mode never overrides user/project/safety instructions.
- Keep
SKILL.mdscannable: short checklists, plain mode names, no persona theatrics. Enrich modes only with practices that have evidence behind them.
Releasing
Bump the version in all four markers together, then tag vX.Y.Z:
package.json→version.claude-plugin/plugin.json→version.claude-plugin/marketplace.json→metadata.version,plugins[0].version, and top-levelversion.codex-plugin/plugin.json→version
The Claude plugin only updates for installed users when version changes, so it must move on every release.
Local setup
Enable the bundled secret-scan hooks once per clone: git config --local core.hooksPath scripts/git-hooks (requires gitleaks).
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.
- 2d ago First seen · 22 lines · 241 tokens per session scan A 95f2919159f3
coding-posture AGENTS.md is an instructions file published in the GitHub repository alexei-led/coding-posture (15 stars, last pushed 2mo ago), licensed MIT. It adds 241 tokens to every session, about $0.0012 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.
Other instructions, from other repositories
meta-llm-charter CLAUDE.md
Instructions for entropyvortex/meta-llm-charter, covering meta v3.1 core charter, bias, meta-0, r1 decompose and r2 ask gate.
awesome-reviewers CLAUDE.md
Instructions for baz-scm/awesome-reviewers, covering awesome reviewers — repository guidelines, what this project is, source of truth, site layer and machine interface.
code-context AGENTS.md
Instructions for infino-ai/code-context, covering code-context: notes for ai agents, project overview, repo map, build, test, gates and conventions.
gtm-cheat-codes CLAUDE.md
Instructions for zapier/gtm-cheat-codes, covering repo conventions and commits.
Stata-CLI AGENTS.md
Instructions for Utolaris/Stata-CLI, covering agents.md, project structure and working rules.
waybill AGENTS.md
Instructions for wardmos/waybill, covering agents.md, privacy, checks, commit messages and git history.