feat: show dollar savings across all touchpoints#103
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Every developer touchpoint now shows estimated cost saved alongside token percentages. The dollar amount is calculated from the configured pricing model (default: opus). This surfaces in: - cce status --oneline (session start hook) - Session resume context (memory hooks) - MCP index_status response The goal is to make savings tangible and shareable.
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Pull request overview
This PR adds “$X saved” cost-savings text alongside existing token-savings metrics so developers see (and the model receives) a more shareable savings number across session start/resume, MCP index_status, and cce status --oneline.
Changes:
- Add dollar-cost savings formatting to the SessionStart resume savings line (
memory/hooks.py). - Extend MCP
index_statusto append “$X saved” using the configured pricing model (integration/mcp_server.py). - Update
cce status --onelineto include “($X saved)” next to “% saved over N queries” (cli.py).
Reviewed changes
Copilot reviewed 3 out of 3 changed files in this pull request and generated 6 comments.
| File | Description |
|---|---|
| src/context_engine/memory/hooks.py | Appends a “$X saved” suffix to the SessionStart resume savings line (defaults to opus pricing). |
| src/context_engine/integration/mcp_server.py | Adds _fmt_cost_saved() and appends cost savings to index_status output. |
| src/context_engine/cli.py | Updates status --oneline to include a dollar savings estimate derived from pricing. |
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- Clamp tokens_saved to max(0, ...) in hooks, MCP index_status, and CLI oneline to prevent negative percentages and dollar amounts - Use static pricing (no network) in session hook and CLI oneline paths to avoid latency on session start / status queries - Guard _fmt_cost_saved early return when tokens_saved <= 0
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Summary
97% saved over 22 queries ($11.16 saved)This is the viral mechanic. Developers see "$X saved" on every session start and share it.
Depends on #101 for full multi-model pricing support (works standalone with opus default).