Evidaxis

Letta

repo
Agent Frameworks · n = 17 · letta-ai/letta
3 of 3 axes measurable · conf medium
convergence gate
Convergence gate: Gate: computed weekly across the cohort; no convergence event this week Development velocity: measured × Citation momentum: measured × Direct-dependents momentum (deps.dev): measured ×
gate
0 of 3 axes

Gate: computed weekly across the cohort; no convergence event this week

Gate: computed weekly across the cohort; no convergence event this week
position in cohort distribution one of 17 in cohort
percentile 0 within cohort p25 p50 p75 p0 p100
percentile
p0
momentum averages present-axis z-scores; two- and three-axis scores are not strictly comparable
velocity z
velocity z gaugevelocity z-0.18 within cohort, log-slope -0.003/wk.0-0.18
velocity z
-0.18 σ
slope
-0.003/wk
log-slope -0.003/wk
citation z
citation z gaugecitation z-0.67 within cohort, log-slope +0.723/yr.0-0.67
citation z
-0.67 σ
slope
+0.723/yr
log-slope +0.723/yr
direct-dependents z
direct-dependents z gaugedirect-dependents z-1.43 within cohort, log-slope +0.001/point.0-1.43
direct-dependents z
-1.43 σ
slope
+0.001/point
Direct-dependents axis: measured.
cohort
17
systems measured
weekly commits
0.6
Development velocity axis: measured.
total citations
58
Citation axis: measured.
momentum
40.5
percentile p0
commit heatmap, last 26 weeks0.6/wk
weekly commits, 26 weeks26 weeks of commits, peak 3 in a week, 9 active weeks, 15 total.week 1: 3 commitsweek 2: 2 commitsweek 3: 0 commitsweek 4: 0 commitsweek 5: 0 commitsweek 6: 0 commitsweek 7: 1 commitsweek 8: 0 commitsweek 9: 0 commitsweek 10: 0 commitsweek 11: 0 commitsweek 12: 0 commitsweek 13: 1 commitsweek 14: 1 commitsweek 15: 0 commitsweek 16: 0 commitsweek 17: 0 commitsweek 18: 2 commitsweek 19: 0 commitsweek 20: 2 commitsweek 21: 0 commitsweek 22: 1 commitsweek 23: 0 commitsweek 24: 2 commitsweek 25: 0 commitsweek 26: 0 commits
weeks
26
peak/wk
3
active
9
total
15
citations by yeartotal 58
Citations by year2023: 3, 2024: 12, 2025: 16, 2026: 27. Total 58 citations.2023: 3 citations2332024: 12 citations24122025: 16 citations25162026: 27 citations2627
total cites
58
years
4
latest yr
27
Daily dependents count (unscored) 1 dependents 1 direct · pypi/letta · deps.dev · the scored m3 axis uses weekly partitions

Letta holds an Evidaxis momentum score of 40.5 of 100 on methodology m3, snapshot 2026-09-26, measured within the Agent Frameworks cohort (n = 17). Axis coverage: 3 of 3 axes measurable. Gate: computed weekly across the cohort; no convergence event this week

Derived signals

second-order reads, computed from the published series

Three signals ship when the commit series is statistically sufficient; the rest are held in a reserved state until the data supports them. A reserved signal shows its reason, never a fabricated number. How these are computed.

recency-weighted swing trailing 13-week vs prior 39-week log-slope ratio +0.02, regime recent slope below prior window. prior slope -0.137, recent slope -0.003 per week. -0.137prior 39w-0.003recent 13w+0.02×
swing
+0.02×
regime
recent slope below prior window
windows
13w vs 39w
snapshot 1 of 1 · · m3
commit-axis Sharpe log-linear slope over residual std, value -0.116 with 95% CI -0.164 to -0.067, 50 degrees of freedom. CI spans zero.0-0.11695% CI -0.164, -0.067-0.164-0.067
sharpe
-0.116
95% ci
-0.164, -0.067
dof
50
snapshot 1 of 1 · · m3
commit changepoint52 weekly commit points. Changepoint at week 5 (2025-11-01), slope change -10.353 commits per week.2025-11-01
date
week
5 of 52
Δslope
-10.353/wk
snapshot 1 of 1 · · m3
code-leads-citation lag reserved

reserved: citation series too short / axis absent for cross-correlation

status
reserved
value
insufficient data
snapshot 1 of 1 · · m3
axis alpha vs cohort reserved

reserved: cohort N too small for regression (power ~0)

status
reserved
value
insufficient data
snapshot 1 of 1 · · m3
gate ETA reserved

reserved: needs snapshot history (1 snapshot exists)

status
reserved
value
insufficient history
snapshot 1 of 1 · · m3
methodology gate snapshot 1 of 1 · · m3
commit weeks
52
citation years
4
shipped
3
reserved
3

shipped

  • recency-swing
  • commit-sharpe
  • commit-changepoint

reserved

  • code-leads-citation-lag
  • axis-alpha
  • gate-eta
snapshot 1 of 1 · · m3

Reconstructed history

Letta reconstructed weekly commits35 points, range 1 to 103 commits/wk.
min
1 commits/wk
max
103 commits/wk
latest
2 commits/wk
points
35

Weekly commits over the past year, reconstructed from git history (GitHub commit_activity). This is reconstructed, not a point-in-time capture. Evidaxis captures the Type-2 signals (watchers, issues, dependents) live and never backfills them; those are the moat.

Daily dependents count (unscored)

Letta dependents over time3 points, range 1 to 1 dependents.
min
1 dependents
max
1 dependents
latest
1 dependents
points
3

Downstream packages depending on pypi/letta (deps.dev), captured point-in-time each snapshot. This daily series is unscored. The scored axis in m3 uses weekly partitions.

Measurement states

Letta is under weekly measurement. History: 13 weekly observations; minimum 4. Development velocity axis: measured. Citation axis: measured. Direct-dependents axis: measured. Gate: computed weekly across the cohort; no convergence event this week

Sources

letta-ai/letta development-velocity axis
OpenAlex paper citation-momentum axis

Others in Agent Frameworks

AgentScope Agent Frameworks
Rising
80
p100
vel +2.83 cit no axis deps +1.95
axis dials
+2.83 n/a +1.95
Agno Agent Frameworks
2 of 3 axes measurable
46
p25
vel -0.17 cit no axis deps -0.54
axis dials
-0.17 n/a -0.54
AutoGen Agent Frameworks
2 of 3 axes measurable
48
p31
vel +0.29 cit no axis deps -0.63
axis dials
+0.29 n/a -0.63
CAMEL Agent Frameworks
3 of 3 axes measurable
51
p38
vel -0.63 cit +0.00 deps +0.76
axis dials
-0.63 +0.00 +0.76
CrewAI Agent Frameworks
2 of 3 axes measurable
54
p50
vel -0.21 cit no axis deps +0.89
axis dials
-0.21 n/a +0.89
DSPy Agent Frameworks
2 of 3 axes measurable
55
p62
vel +1.18 cit no axis deps -0.40
axis dials
+1.18 n/a -0.40

Full Agent Frameworks cohort →

Direct-dependents momentum (deps.dev)

Direct-dependents axis: measured.

Coverage state
scored
Cohort z
-1.43
OLS slope
+0.001
Theil-Sen slope
+0.000
Latest direct dependents
13
Confirmed-clean points
23
Reconstructed history points
15
As-of partition
2026-09-07
Fragility veto
active
Rising vote
no

This axis measures the frozen-panel trajectory of the package set selected and linkage-verified as of 2026-07-21. Systems outside that panel are not measured on this axis. Residual survivorship beyond the frozen universe is disclosed, not denied.

The earliest weekly points of each series were read from deps.dev's BigQuery history on 2026-07-21; later points are weekly captures. Each record reports how many of its points are reconstructed history.

Source: deps.dev (Google), CC-BY 4.0. Modified: aggregated to system-level counts and momentum scores.

Axis definition · Snapshot axis correlations

entity_id e_15264R968MN methodology m3 snapshot 9d2fe956adbc period 2026-w39 record JSON ↓ source snapshot

Score derived from public data on Evidaxis methodology m3, never edited by hand. Cite as: “Evidaxis, Letta, entity e_15264R968MN, snapshot 2026-w39.”

Durable reference (format-independent): urn:evidaxis:claim:e_15264R968MN:m3:2026-09-26