Borrowing it
Nothing to install: this file belongs to symphos-ai/orcho-core. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/symphos-ai/orcho-core/main/.agents/skills/orcho-core-evidence-observability/SKILL.mdgit clone --depth 1 https://github.com/symphos-ai/orcho-coreWrote 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/symphos-ai/orcho-core/orcho-core-evidence-observability)<a href="https://agentmods.dev/skills/symphos-ai/orcho-core/orcho-core-evidence-observability"><img src="https://agentmods.dev/badge/skills/symphos-ai/orcho-core/orcho-core-evidence-observability/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/symphos-ai/orcho-core/orcho-core-evidence-observability"><img src="https://agentmods.dev/badge/skills/symphos-ai/orcho-core/orcho-core-evidence-observability.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00094 | $0.00500 |
| Opus 5 | $0.00047 | $0.00250 |
| Sonnet 5 | $0.00019 | $0.00100 |
| Haiku 4.5 | $0.00009 | $0.00050 |
Grade A, and why
orcho-core-evidence-observability 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 12d 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
Orcho Core Evidence Observability
Keep run evidence, events, metrics, run diff, and artifact mirrors explainable and stable.
First Reads
orcho-core/AGENTS.mdorcho-core/pipeline/evidence/orcho-core/pipeline/observability/orcho-core/core/observability/orcho-core/pipeline/artifacts/types.pyorcho-core/pipeline/engine/run_diff.pyorcho-core/pipeline/engine/artifact_mirror.pyorcho-core/docs/adr/0020-run-evidence-in-core.md
Owns
- evidence bundles and collectors
- event and metric surfaces
- prompt render evidence
- run diff and artifact mirrors
- artifact metadata
Does Not Own
- SDK-visible shape ->
orcho-core-sdk-wire - cross-project artifact bundle ->
orcho-core-cross-project - prompt composition itself ->
orcho-prompt-engine
Invariants
- Evidence should explain task, plan, phase timeline, findings, commands, artifacts, metrics, diff summary, skipped checks, and final status.
- Event kinds and metric names are stable surfaces.
- Do not drop important phase trace silently.
Verification
- From
orcho-core:python -m pytest -q tests/unit/pipeline/evidence - From
orcho-core:python -m pytest -q tests/sdk/test_evidence_slices.py tests/sdk/test_run_diff.pywhen SDK-visible - From
orcho-core: run targeted run-diff/artifact tests when those files change. - Pair with
orcho-mcpsmoke when exposed through MCP.
Neighbor Skills
orcho-core-sdk-wirefor public evidence/status shapeorcho-prompt-enginewhen prompt render contract changesorcho-mcpwhen evidence is exposed through MCP
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.
- 12d ago First seen · 55 lines · 94 tokens per session scan A 364be00dcfc2
orcho-core-evidence-observability is a skill published in the GitHub repository symphos-ai/orcho-core (5 stars, last pushed today), licensed Apache-2.0. It adds 94 tokens to every session and 500 once invoked, about $0.0005 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.
Other skills, from other repositories
review-deep
Drive the deep-review phase of an automated PR review. Consumes the walkthrough, runs the deterministic deep-review workflow (parallel lenses → adversarial validation → code-enforced threshold/caps), drafts the surviving findings, and completes the review run.
review-orchestrator
Drive an automated PR review. Produces a structured walkthrough plus inline draft comments via the octomux review CLI. NEVER posts to GitHub directly — publishing is human-gated.
review-pr
Use when reviewing a pull request, posting PR review comments, or when user says /review-pr. Reviews code with parallel agents and posts a pending GitHub review with inline comments.
review-walkthrough
Drive the walkthrough phase of an automated PR review. Produces a structured walkthrough JSON only — no inline comment drafts. The deep-review agent is attached automatically by the server after this agent finishes.
create-pr
Use when creating a pull request, opening a PR, or pushing and creating a PR for an octomux task.
ship-pr
Use to ship a change end-to-end from an octomux task — write a walkthrough, gate on a code review, open the PR, then monitor CI/comments and push fixes, finally refreshing the walkthrough. Heavier than create-pr; use when you want the full review→ship→watch loop, not just opening a PR.